| Step | Hyp | Ref
 | Expression | 
| 1 |   | unab 3522 | 
. . 3
       
   c We NC              
NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c             
    c We NC        NC   Nc   Spac    
   1c     
     Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 2 |   | elima3 4757 | 
. . . . . 6
                   1c        AddC   ⋃1 ∼    SI      S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC          
  ⋃1
∼    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC                         1c        AddC     | 
| 3 |   | vex 2863 | 
. . . . . . . . . . 11
        | 
| 4 | 3 | eluni1 4174 | 
. . . . . . . . . 10
       ⋃1 ∼    SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC           ∼    SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC    | 
| 5 |   | snex 4112 | 
. . . . . . . . . . 11
       
  | 
| 6 | 5 | elcompl 3226 | 
. . . . . . . . . 10
         ∼
   SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC            
   SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC    | 
| 7 |   | elimapw13 4947 | 
. . . . . . . . . . . 12
            SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC          NC                    SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    | 
| 8 |   | spacval 6283 | 
. . . . . . . . . . . . . . . . . 18
       NC     Spac    
   Clos1                      NC       NC        2c ↑c
       | 
| 9 | 8 | nceqd 6111 | 
. . . . . . . . . . . . . . . . 17
       NC   Nc   Spac       Nc  Clos1                      NC       NC        2c ↑c
       | 
| 10 | 9 | eqeq1d 2361 | 
. . . . . . . . . . . . . . . 16
       NC     Nc   Spac      
    Nc  Clos1                      NC       NC        2c ↑c
            | 
| 11 |   | tccl 6161 | 
. . . . . . . . . . . . . . . . . . . 20
       NC   Tc     NC   | 
| 12 |   | spacval 6283 | 
. . . . . . . . . . . . . . . . . . . 20
    Tc    
NC     Spac   Tc   
   Clos1    Tc         
          NC       NC        2c ↑c
       | 
| 13 | 11, 12 | syl 15 | 
. . . . . . . . . . . . . . . . . . 19
       NC     Spac   Tc   
   Clos1    Tc         
          NC       NC        2c ↑c
       | 
| 14 | 13 | eleq1d 2419 | 
. . . . . . . . . . . . . . . . . 18
       NC      Spac   Tc      Fin    Clos1
   Tc         
          NC       NC        2c ↑c
        Fin    | 
| 15 | 13 | nceqd 6111 | 
. . . . . . . . . . . . . . . . . . . 20
       NC   Nc   Spac   Tc      Nc  Clos1
   Tc         
          NC       NC        2c ↑c
       | 
| 16 | 15 | eqeq1d 2361 | 
. . . . . . . . . . . . . . . . . . 19
       NC     Nc   Spac   Tc   
    Tc     1c    Nc  Clos1
   Tc         
          NC       NC        2c ↑c
          Tc     1c    | 
| 17 | 15 | eqeq1d 2361 | 
. . . . . . . . . . . . . . . . . . 19
       NC     Nc   Spac   Tc   
    Tc     2c    Nc  Clos1
   Tc         
          NC       NC        2c ↑c
          Tc     2c    | 
| 18 | 16, 17 | orbi12d 690 | 
. . . . . . . . . . . . . . . . . 18
       NC      Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c       Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c     | 
| 19 | 14, 18 | anbi12d 691 | 
. . . . . . . . . . . . . . . . 17
       NC       Spac   Tc      Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c        Clos1
   Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c      | 
| 20 | 19 | notbid 285 | 
. . . . . . . . . . . . . . . 16
       NC         Spac
  Tc   
  Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c          Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c      | 
| 21 | 10, 20 | anbi12d 691 | 
. . . . . . . . . . . . . . 15
       NC      Nc   Spac    
           Spac   Tc      Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c         Nc  Clos1
     
               NC       NC        2c ↑c
                Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c       | 
| 22 |   | eldif 3222 | 
. . . . . . . . . . . . . . . 16
                      SI
     S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c                        SI      S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                           SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    | 
| 23 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . . 20
            | 
| 24 | 23, 3 | opsnelsi 5775 | 
. . . . . . . . . . . . . . . . . . 19
                     SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                       S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC    | 
| 25 |   | opelcnv 4894 | 
. . . . . . . . . . . . . . . . . . 19
                     S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC    | 
| 26 |   | opelres 4951 | 
. . . . . . . . . . . . . . . . . . . 20
      
             S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         NC    | 
| 27 |   | opelcnv 4894 | 
. . . . . . . . . . . . . . . . . . . . . 22
      
            S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c                    S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c    | 
| 28 |   | opelco 4885 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                  S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c              SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S     | 
| 29 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
       
  | 
| 30 | 29 | brsnsi1 5776 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
        
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         
             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     | 
| 31 | 30 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
          SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 32 |   | 19.41v 1901 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S           
             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 33 | 31, 32 | bitr4i 243 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
          SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 34 | 33 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
            SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                           ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 35 |   | excom 1741 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
                        ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                           ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 36 | 34, 35 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . 23
            SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                           ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 37 |   | anass 630 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
                    ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                       ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S      | 
| 38 | 37 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S      | 
| 39 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       
  | 
| 40 |   | breq1 4643 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
                S         S     | 
| 41 | 40 | anbi2d 684 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
                    ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S            ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S      | 
| 42 | 39, 41 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S     | 
| 43 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
        ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 44 |   | df-br 4641 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
     ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c                  ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c   | 
| 45 |   | spacvallem1 6282 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
      
          NC       NC        2c ↑c
         | 
| 46 | 45, 29 | nchoicelem10 6299 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
      
       ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        
Clos1      
               NC       NC        2c ↑c
       | 
| 47 | 43, 44, 46 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
        ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c          Clos1           
          NC       NC        2c ↑c
       | 
| 48 |   | vex 2863 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
        | 
| 49 | 48, 3 | brssetsn 4760 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       S            | 
| 50 | 47, 49 | anbi12i 678 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
         ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S   
 
      Clos1                      NC       NC        2c ↑c
                | 
| 51 | 38, 42, 50 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S            Clos1           
          NC       NC        2c ↑c
                | 
| 52 | 51 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                        ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S              Clos1                      NC       NC        2c ↑c
                | 
| 53 | 28, 36, 52 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . 22
                  S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         
   Clos1                      NC       NC        2c ↑c
                | 
| 54 | 29, 45 | clos1ex 5877 | 
. . . . . . . . . . . . . . . . . . . . . . 23
   Clos1                      NC       NC        2c ↑c
          | 
| 55 |   | eleq1 2413 | 
. . . . . . . . . . . . . . . . . . . . . . 23
        Clos1                      NC       NC      
 2c
↑c                   Clos1                      NC       NC      
 2c
↑c        
    | 
| 56 | 54, 55 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . 22
          
Clos1      
               NC       NC        2c ↑c
                  Clos1                      NC       NC        2c ↑c
           | 
| 57 | 27, 53, 56 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . 21
      
            S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      Clos1                      NC       NC        2c ↑c
           | 
| 58 | 57 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . 20
                    S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         NC       Clos1                      NC       NC      
 2c
↑c        
       
NC    | 
| 59 |   | ancom 437 | 
. . . . . . . . . . . . . . . . . . . 20
     Clos1           
          NC       NC        2c ↑c
             
  NC          NC   
Clos1      
               NC       NC        2c ↑c
            | 
| 60 | 26, 58, 59 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . 19
      
             S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          NC   
Clos1      
               NC       NC        2c ↑c
            | 
| 61 | 24, 25, 60 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . 18
                     SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          NC   
Clos1      
               NC       NC        2c ↑c
            | 
| 62 |   | eqcom 2355 | 
. . . . . . . . . . . . . . . . . . 19
    Nc  Clos1                      NC       NC        2c ↑c
                Nc  Clos1                      NC       NC        2c ↑c
       | 
| 63 | 54 | eqnc2 6130 | 
. . . . . . . . . . . . . . . . . . 19
       Nc  Clos1
     
               NC       NC        2c ↑c
             NC    Clos1           
          NC       NC        2c ↑c
            | 
| 64 | 62, 63 | bitri 240 | 
. . . . . . . . . . . . . . . . . 18
    Nc  Clos1                      NC       NC        2c ↑c
                 NC    Clos1                      NC       NC      
 2c
↑c        
    | 
| 65 | 61, 64 | bitr4i 243 | 
. . . . . . . . . . . . . . . . 17
                     SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC     Nc  Clos1
     
               NC       NC        2c ↑c
           | 
| 66 |   | elimapw11c 4949 | 
. . . . . . . . . . . . . . . . . . 19
                       SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c                                  SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      | 
| 67 |   | oteltxp 5783 | 
. . . . . . . . . . . . . . . . . . . . 21
                               SI  SI
 TcFn       TcFn      
AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                            SI  SI  TcFn  
                   TcFn       AddC              1c         AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      | 
| 68 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
       
  | 
| 69 | 68, 23 | opsnelsi 5775 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                       SI  SI  TcFn                   SI  TcFn  | 
| 70 |   | vex 2863 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
        | 
| 71 | 70, 29 | opsnelsi 5775 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
                   SI  TcFn      
        TcFn  | 
| 72 |   | df-br 4641 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
     TcFn                  TcFn  | 
| 73 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
     TcFn         TcFn   | 
| 74 | 71, 72, 73 | 3bitr2i 264 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                   SI  TcFn      TcFn   | 
| 75 |   | vex 2863 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
        | 
| 76 | 75 | brtcfn 6247 | 
. . . . . . . . . . . . . . . . . . . . . . 23
      TcFn        Tc    | 
| 77 | 69, 74, 76 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . 22
                       SI  SI  TcFn       Tc    | 
| 78 |   | opelco 4885 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                      TcFn       AddC              1c         AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                   S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          TcFn      
AddC              1c    
    AddC        
     2c         Nn        | 
| 79 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
             S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC           S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC         | 
| 80 |   | brres 4950 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
        S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC               S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c              NC    | 
| 81 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
       S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c                  S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     | 
| 82 |   | brco 4884 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
           S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c               SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S     | 
| 83 | 68 | brsnsi1 5776 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
        
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         
             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     | 
| 84 | 83 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
          SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 85 |   | 19.41v 1901 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S           
             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 86 | 84, 85 | bitr4i 243 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
          SI   ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 87 | 86 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
            SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S                           ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 88 |   | excom 1741 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
                        ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                           ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S     | 
| 89 |   | anass 630 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
                    ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                       ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S      | 
| 90 | 89 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S                         ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S      | 
| 91 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
       
  | 
| 92 |   | breq1 4643 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
                S         S     | 
| 93 | 92 | anbi2d 684 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
                    ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S            ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S      | 
| 94 | 91, 93 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S             ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S     | 
| 95 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
        ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 96 |   | df-br 4641 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
     ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c                  ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c   | 
| 97 | 45, 68 | nchoicelem10 6299 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
      
       ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        
Clos1      
               NC       NC        2c ↑c
       | 
| 98 | 95, 96, 97 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
        ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c          Clos1           
          NC       NC        2c ↑c
       | 
| 99 |   | vex 2863 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
        | 
| 100 | 99, 48 | brssetsn 4760 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
       S            | 
| 101 | 98, 100 | anbi12i 678 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
         ∼    Ins3  S 
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c         S   
 
      Clos1                      NC       NC        2c ↑c
                | 
| 102 | 90, 94, 101 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
                      ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S            Clos1           
          NC       NC        2c ↑c
                | 
| 103 | 102 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
                        ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c        S              Clos1                      NC       NC        2c ↑c
                | 
| 104 | 87, 88, 103 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
            SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S              Clos1                      NC       NC      
 2c
↑c                 | 
| 105 |   | df-clel 2349 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
    Clos1
     
               NC       NC        2c ↑c
                    Clos1                      NC       NC      
 2c
↑c                 | 
| 106 | 104, 105 | bitr4i 243 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
            SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       S       Clos1           
          NC       NC        2c ↑c
           | 
| 107 | 81, 82, 106 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
       S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c           Clos1                      NC       NC        2c ↑c
           | 
| 108 | 107 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
        S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c              NC       Clos1                      NC       NC      
 2c
↑c        
       
NC    | 
| 109 |   | ancom 437 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
     Clos1           
          NC       NC        2c ↑c
             
  NC          NC   
Clos1      
               NC       NC        2c ↑c
            | 
| 110 | 80, 108, 109 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
        S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC               NC   
Clos1      
               NC       NC        2c ↑c
            | 
| 111 | 68, 45 | clos1ex 5877 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
   Clos1                      NC       NC        2c ↑c
          | 
| 112 | 111 | eqnc2 6130 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
       Nc  Clos1
     
               NC       NC        2c ↑c
             NC    Clos1           
          NC       NC        2c ↑c
            | 
| 113 | 110, 112 | bitr4i 243 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
        S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC              Nc  Clos1                      NC       NC        2c ↑c
       | 
| 114 | 79, 113 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
             S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          Nc  Clos1                      NC       NC        2c ↑c
       | 
| 115 |   | brres 4950 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       TcFn       AddC              1c         AddC        
     2c         Nn            TcFn       AddC              1c         AddC        
     2c                Nn    | 
| 116 |   | brco 4884 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
      TcFn      
AddC              1c    
    AddC        
     2c                    AddC              1c         AddC        
     2c           TcFn      | 
| 117 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
        AddC              1c         AddC        
     2c             AddC              1c    
    AddC        
     2c        | 
| 118 |   | brun 4693 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
       AddC              1c         AddC        
     2c             AddC              1c           AddC              2c        | 
| 119 |   | brco 4884 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
      AddC              1c                       1c         AddC     | 
| 120 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
               1c    
 
           1c      | 
| 121 |   | brres 4950 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
              1c    
 
    
           1c     | 
| 122 |   | eliniseg 5021 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
            1c       1c  | 
| 123 | 122 | anbi2i 675 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
             
     1c          
    1c   | 
| 124 | 121, 123 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
              1c    
 
    
    1c   | 
| 125 |   | 1cex 4143 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
 
1c  
  | 
| 126 | 99, 125 | op1st2nd 5791 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
            1c           
1c   | 
| 127 | 120, 124,
126 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 37
               1c    
 
       
1c   | 
| 128 | 127 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
                1c         AddC              
1c      AddC     | 
| 129 | 128 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
                  1c        
AddC          
     
1c      AddC     | 
| 130 | 99, 125 | opex 4589 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
      1c      | 
| 131 |   | breq1 4643 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
           1c       AddC         1c  AddC
    | 
| 132 | 130, 131 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
             
1c      AddC          1c  AddC    | 
| 133 | 119, 129,
132 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
      AddC              1c            1c  AddC    | 
| 134 | 99, 125 | braddcfn 5827 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
      
1c  AddC         
1c 
     | 
| 135 |   | eqcom 2355 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
       
1c 
         
     1c   | 
| 136 | 133, 134,
135 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
      AddC              1c                
1c   | 
| 137 |   | brco 4884 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
      AddC              2c                       2c         AddC     | 
| 138 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
               2c    
 
           2c      | 
| 139 |   | brres 4950 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
              2c    
 
    
           2c     | 
| 140 |   | eliniseg 5021 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
            2c       2c  | 
| 141 | 140 | anbi2i 675 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
             
     2c          
    2c   | 
| 142 | 139, 141 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
              2c    
 
    
    2c   | 
| 143 |   | 2nc 6169 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
 
2c  
NC | 
| 144 | 143 | elexi 2869 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
 
2c  
  | 
| 145 | 99, 144 | op1st2nd 5791 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
            2c           
2c   | 
| 146 | 138, 142,
145 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . 37
               2c    
 
       
2c   | 
| 147 | 146 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
                2c         AddC              
2c      AddC     | 
| 148 | 147 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
                  2c        
AddC          
     
2c      AddC     | 
| 149 | 99, 144 | opex 4589 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
      2c      | 
| 150 |   | breq1 4643 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
           2c       AddC         2c  AddC
    | 
| 151 | 149, 150 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
             
2c      AddC          2c  AddC    | 
| 152 | 137, 148,
151 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
      AddC              2c            2c  AddC    | 
| 153 | 99, 144 | braddcfn 5827 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
      
2c  AddC         
2c 
     | 
| 154 |   | eqcom 2355 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
       
2c 
         
     2c   | 
| 155 | 152, 153,
154 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
      AddC              2c                
2c   | 
| 156 | 136, 155 | orbi12i 507 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
       AddC              1c           AddC              2c                  
1c 
          
2c    | 
| 157 | 117, 118,
156 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
        AddC              1c         AddC        
     2c                   1c     
       2c    | 
| 158 |   | brcnv 4893 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
     TcFn         TcFn   | 
| 159 | 3 | brtcfn 6247 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
      TcFn        Tc    | 
| 160 | 158, 159 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
     TcFn         
Tc    | 
| 161 | 157, 160 | anbi12i 678 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
         AddC        
     1c         AddC              2c           TcFn    
 
     
     1c            
2c         Tc     | 
| 162 |   | ancom 437 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
             
1c 
          
2c         Tc           Tc              
1c 
          
2c     | 
| 163 | 161, 162 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
         AddC        
     1c         AddC              2c           TcFn    
 
     Tc       
       1c            
2c     | 
| 164 | 163 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
           AddC              1c    
    AddC        
     2c           TcFn              Tc       
       1c            
2c     | 
| 165 |   | tcex 6158 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
  Tc    
  | 
| 166 |   | addceq1 4384 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
       Tc         
1c 
    Tc     1c   | 
| 167 | 166 | eqeq2d 2364 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
       Tc              
1c 
 
      Tc     1c    | 
| 168 |   | addceq1 4384 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
       Tc         
2c 
    Tc     2c   | 
| 169 | 168 | eqeq2d 2364 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
       Tc              
2c 
 
      Tc     2c    | 
| 170 | 167, 169 | orbi12d 690 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
       Tc               
1c 
          
2c            Tc     1c          Tc     2c     | 
| 171 | 165, 170 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
          Tc              
1c 
          
2c             Tc     1c          Tc     2c    | 
| 172 | 116, 164,
171 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
      TcFn      
AddC              1c    
    AddC        
     2c                   Tc     1c     
    Tc     2c    | 
| 173 | 172 | anbi1i 676 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       TcFn       AddC              1c         AddC        
     2c                Nn             Tc     1c          Tc     2c  
      Nn    | 
| 174 |   | ancom 437 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
           Tc     1c     
    Tc     2c         Nn          Nn          Tc     1c          Tc     2c     | 
| 175 | 115, 173,
174 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
       TcFn       AddC              1c         AddC        
     2c         Nn          
  Nn          Tc     1c          Tc     2c     | 
| 176 | 114, 175 | anbi12i 678 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
              S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          TcFn      
AddC              1c    
    AddC        
     2c         Nn              Nc  Clos1                      NC       NC        2c ↑c
            
Nn          Tc     1c     
    Tc     2c      | 
| 177 | 176 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . . . . . 23
                S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC          TcFn      
AddC              1c    
    AddC        
     2c         Nn                Nc  Clos1
     
               NC       NC        2c ↑c
            
Nn          Tc     1c     
    Tc     2c      | 
| 178 |   | ncex 6118 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
  Nc  Clos1                      NC       NC        2c ↑c
          | 
| 179 |   | eleq1 2413 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       Nc  Clos1
     
               NC       NC        2c ↑c
            
Nn   Nc  Clos1                      NC       NC        2c ↑c
        Nn    | 
| 180 |   | finnc 6244 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
    Clos1
     
               NC       NC        2c ↑c
        Fin   Nc  Clos1                      NC       NC        2c ↑c
        Nn   | 
| 181 | 179, 180 | syl6bbr 254 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
       Nc  Clos1
     
               NC       NC        2c ↑c
            
Nn    Clos1           
          NC       NC        2c ↑c
        Fin    | 
| 182 |   | eqeq1 2359 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       Nc  Clos1
     
               NC       NC        2c ↑c
            
  Tc     1c    Nc  Clos1
     
               NC       NC        2c ↑c
          Tc     1c    | 
| 183 |   | eqeq1 2359 | 
. . . . . . . . . . . . . . . . . . . . . . . . . 26
       Nc  Clos1
     
               NC       NC        2c ↑c
            
  Tc     2c    Nc  Clos1
     
               NC       NC        2c ↑c
          Tc     2c    | 
| 184 | 182, 183 | orbi12d 690 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
       Nc  Clos1
     
               NC       NC        2c ↑c
           
    Tc     1c          Tc     2c  
 
  Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c     | 
| 185 | 181, 184 | anbi12d 691 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
       Nc  Clos1
     
               NC       NC        2c ↑c
           
  Nn          Tc     1c          Tc     2c   
 
 
Clos1      
               NC       NC        2c ↑c
        Fin     Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c      | 
| 186 | 178, 185 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . . . . . 23
          Nc  Clos1                      NC       NC        2c ↑c
            
Nn          Tc     1c     
    Tc     2c         Clos1                      NC       NC      
 2c
↑c        
Fin    
Nc  Clos1           
          NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c     | 
| 187 | 78, 177, 186 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . . . . . 22
                      TcFn       AddC              1c         AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        Clos1
     
               NC       NC        2c ↑c
        Fin     Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c     | 
| 188 | 77, 187 | anbi12i 678 | 
. . . . . . . . . . . . . . . . . . . . 21
           
            SI 
SI  TcFn                      TcFn       AddC              1c         AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC            Tc       Clos1                      NC       NC      
 2c
↑c        
Fin    
Nc  Clos1           
          NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c      | 
| 189 | 67, 188 | bitri 240 | 
. . . . . . . . . . . . . . . . . . . 20
                               SI  SI
 TcFn       TcFn      
AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC            Tc       Clos1                      NC       NC      
 2c
↑c        
Fin    
Nc  Clos1           
          NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c      | 
| 190 | 189 | exbii 1582 | 
. . . . . . . . . . . . . . . . . . 19
                                 SI  SI
 TcFn       TcFn      
AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC           
  Tc       Clos1                      NC       NC        2c ↑c
        Fin     Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c      | 
| 191 |   | tcex 6158 | 
. . . . . . . . . . . . . . . . . . . 20
  Tc    
  | 
| 192 |   | sneq 3745 | 
. . . . . . . . . . . . . . . . . . . . . . 23
       Tc             Tc     | 
| 193 |   | clos1eq1 5875 | 
. . . . . . . . . . . . . . . . . . . . . . 23
           Tc       Clos1                      NC       NC        2c ↑c
        
Clos1    Tc         
          NC       NC        2c ↑c
       | 
| 194 | 192, 193 | syl 15 | 
. . . . . . . . . . . . . . . . . . . . . 22
       Tc      Clos1                      NC       NC        2c ↑c
        
Clos1    Tc         
          NC       NC        2c ↑c
       | 
| 195 | 194 | eleq1d 2419 | 
. . . . . . . . . . . . . . . . . . . . 21
       Tc       Clos1                      NC       NC      
 2c
↑c        
Fin    Clos1    Tc         
          NC       NC        2c ↑c
        Fin    | 
| 196 | 194 | nceqd 6111 | 
. . . . . . . . . . . . . . . . . . . . . . 23
       Tc     Nc 
Clos1      
               NC       NC        2c ↑c
        Nc  Clos1    Tc                    NC       NC        2c ↑c
       | 
| 197 | 196 | eqeq1d 2361 | 
. . . . . . . . . . . . . . . . . . . . . 22
       Tc       Nc  Clos1
     
               NC       NC        2c ↑c
          Tc     1c    Nc  Clos1    Tc         
          NC       NC        2c ↑c
          Tc     1c    | 
| 198 | 196 | eqeq1d 2361 | 
. . . . . . . . . . . . . . . . . . . . . 22
       Tc       Nc  Clos1
     
               NC       NC        2c ↑c
          Tc     2c    Nc  Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c    | 
| 199 | 197, 198 | orbi12d 690 | 
. . . . . . . . . . . . . . . . . . . . 21
       Tc        Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c       Nc  Clos1
   Tc         
          NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c     | 
| 200 | 195, 199 | anbi12d 691 | 
. . . . . . . . . . . . . . . . . . . 20
       Tc        Clos1                      NC       NC        2c ↑c
        Fin     Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c   
 
 
Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c      | 
| 201 | 191, 200 | ceqsexv 2895 | 
. . . . . . . . . . . . . . . . . . 19
          Tc       Clos1                      NC       NC        2c ↑c
        Fin     Nc  Clos1                      NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1      
               NC       NC        2c ↑c
          Tc     2c         Clos1
   Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c     | 
| 202 | 66, 190, 201 | 3bitri 262 | 
. . . . . . . . . . . . . . . . . 18
                       SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c      Clos1    Tc    
               NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c     | 
| 203 | 202 | notbii 287 | 
. . . . . . . . . . . . . . . . 17
                         SI  SI
 TcFn       TcFn      
AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c        Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c     | 
| 204 | 65, 203 | anbi12i 678 | 
. . . . . . . . . . . . . . . 16
                      SI
     S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC                           SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c       Nc  Clos1                      NC       NC        2c ↑c
                Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c      | 
| 205 | 22, 204 | bitri 240 | 
. . . . . . . . . . . . . . 15
                      SI
     S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c       Nc  Clos1                      NC       NC        2c ↑c
                Clos1    Tc         
          NC       NC        2c ↑c
        Fin     Nc  Clos1    Tc                    NC       NC        2c ↑c
          Tc     1c    Nc 
Clos1    Tc         
          NC       NC        2c ↑c
          Tc     2c      | 
| 206 | 21, 205 | syl6rbbr 255 | 
. . . . . . . . . . . . . 14
       NC                       SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c       Nc   Spac    
           Spac   Tc      Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c       | 
| 207 |   | tceq 6159 | 
. . . . . . . . . . . . . . . . . . . 20
    Nc   Spac    
      Tc Nc   Spac    
  Tc    | 
| 208 | 207 | addceq1d 4390 | 
. . . . . . . . . . . . . . . . . . 19
    Nc   Spac    
        Tc Nc   Spac    
 
1c 
    Tc     1c   | 
| 209 | 208 | eqeq2d 2364 | 
. . . . . . . . . . . . . . . . . 18
    Nc   Spac    
        Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
 
Nc   Spac   Tc   
    Tc     1c    | 
| 210 | 207 | addceq1d 4390 | 
. . . . . . . . . . . . . . . . . . 19
    Nc   Spac    
        Tc Nc   Spac    
 
2c 
    Tc     2c   | 
| 211 | 210 | eqeq2d 2364 | 
. . . . . . . . . . . . . . . . . 18
    Nc   Spac    
        Nc   Spac   Tc   
    Tc Nc   Spac      
2c 
 
Nc   Spac   Tc   
    Tc     2c    | 
| 212 | 209, 211 | orbi12d 690 | 
. . . . . . . . . . . . . . . . 17
    Nc   Spac    
         Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c     | 
| 213 | 212 | anbi2d 684 | 
. . . . . . . . . . . . . . . 16
    Nc   Spac    
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c         Spac
  Tc   
  Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c      | 
| 214 | 213 | notbid 285 | 
. . . . . . . . . . . . . . 15
    Nc   Spac    
            Spac
  Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c           Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c      | 
| 215 | 214 | pm5.32i 618 | 
. . . . . . . . . . . . . 14
     Nc   Spac                Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c         Nc   Spac      
         Spac   Tc      Fin     Nc   Spac   Tc   
    Tc     1c    Nc   Spac   Tc   
    Tc     2c      | 
| 216 | 206, 215 | syl6bbr 254 | 
. . . . . . . . . . . . 13
       NC                       SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c       Nc   Spac    
           Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 217 | 216 | rexbiia 2648 | 
. . . . . . . . . . . 12
       
NC                    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c          NC   Nc   Spac    
           Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 218 |   | rexanali 2661 | 
. . . . . . . . . . . 12
       
NC   Nc   Spac      
         Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c              NC   Nc   Spac    
         Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 219 | 7, 217, 218 | 3bitrri 263 | 
. . . . . . . . . . 11
       
  NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c                SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC    | 
| 220 | 219 | con1bii 321 | 
. . . . . . . . . 10
              SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC          NC   Nc   Spac    
         Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 221 | 4, 6, 220 | 3bitri 262 | 
. . . . . . . . 9
       ⋃1 ∼    SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC          NC   Nc   Spac    
         Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 222 |   | opelco 4885 | 
. . . . . . . . . . 11
      
                1c        AddC           AddC                1c       | 
| 223 |   | brcnv 4893 | 
. . . . . . . . . . . . . 14
      AddC       AddC    | 
| 224 |   | brres 4950 | 
. . . . . . . . . . . . . . 15
              1c    
 
    
           1c     | 
| 225 |   | eliniseg 5021 | 
. . . . . . . . . . . . . . . . 17
            1c       1c  | 
| 226 | 225 | anbi2i 675 | 
. . . . . . . . . . . . . . . 16
             
     1c          
    1c   | 
| 227 |   | ancom 437 | 
. . . . . . . . . . . . . . . 16
            1c       1c         | 
| 228 | 226, 227 | bitri 240 | 
. . . . . . . . . . . . . . 15
             
     1c         1c         | 
| 229 | 125, 99 | op1st2nd 5791 | 
. . . . . . . . . . . . . . 15
      1c               1c      | 
| 230 | 224, 228,
229 | 3bitri 262 | 
. . . . . . . . . . . . . 14
              1c    
 
     1c      | 
| 231 | 223, 230 | anbi12i 678 | 
. . . . . . . . . . . . 13
       AddC                1c           AddC          1c       | 
| 232 |   | ancom 437 | 
. . . . . . . . . . . . 13
      AddC      
   1c              1c         AddC     | 
| 233 | 231, 232 | bitri 240 | 
. . . . . . . . . . . 12
       AddC                1c              1c         AddC     | 
| 234 | 233 | exbii 1582 | 
. . . . . . . . . . 11
         AddC                1c                1c         AddC     | 
| 235 | 125, 99 | opex 4589 | 
. . . . . . . . . . . 12
   1c         | 
| 236 |   | breq1 4643 | 
. . . . . . . . . . . 12
        1c         
AddC      1c    
AddC     | 
| 237 | 235, 236 | ceqsexv 2895 | 
. . . . . . . . . . 11
           1c         AddC       1c     AddC    | 
| 238 | 222, 234,
237 | 3bitri 262 | 
. . . . . . . . . 10
      
                1c        AddC      1c     AddC    | 
| 239 | 125, 99 | braddcfn 5827 | 
. . . . . . . . . 10
    1c     AddC      1c           | 
| 240 |   | eqcom 2355 | 
. . . . . . . . . 10
    1c                 1c       | 
| 241 | 238, 239,
240 | 3bitri 262 | 
. . . . . . . . 9
      
                1c        AddC          1c       | 
| 242 | 221, 241 | anbi12i 678 | 
. . . . . . . 8
       
⋃1 ∼    SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC                         1c        AddC           
NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c        
   1c        | 
| 243 |   | ancom 437 | 
. . . . . . . 8
      
  NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c        
   1c               1c            
NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 244 | 242, 243 | bitri 240 | 
. . . . . . 7
       
⋃1 ∼    SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC                         1c        AddC            1c            
NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 245 | 244 | exbii 1582 | 
. . . . . 6
          ⋃1 ∼
   SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC                         1c        AddC          
   1c     
       NC   Nc   Spac              Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 246 | 125, 99 | addcex 4395 | 
. . . . . . 7
   1c       
  | 
| 247 |   | eqeq2 2362 | 
. . . . . . . . 9
        1c          Nc   Spac           Nc   Spac        1c        | 
| 248 | 247 | imbi1d 308 | 
. . . . . . . 8
        1c           Nc   Spac
             Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c         Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 249 | 248 | ralbidv 2635 | 
. . . . . . 7
        1c           
  NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c         
  NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 250 | 246, 249 | ceqsexv 2895 | 
. . . . . 6
           1c            
NC   Nc   Spac      
      
Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c             NC   Nc   Spac    
   1c     
     Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 251 | 2, 245, 250 | 3bitri 262 | 
. . . . 5
                   1c        AddC   ⋃1 ∼    SI      S     SI   ∼   
Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC           NC   Nc   Spac        1c           Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 252 | 251 | eqabi 2465 | 
. . . 4
              1c        AddC   ⋃1 ∼    SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC          
     NC   Nc   Spac        1c           Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c      | 
| 253 | 252 | uneq2i 3416 | 
. . 3
       
   c We NC                 1c   
    AddC   ⋃1 ∼    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC                c We NC               NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 254 |   | imor 401 | 
. . . 4
      c We NC        NC   Nc   Spac    
   1c     
     Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c            c We NC        NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 255 | 254 | abbii 2466 | 
. . 3
        
 c We NC        NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c             
    c We NC        NC   Nc   Spac    
   1c     
     Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 256 | 1, 253, 255 | 3eqtr4i 2383 | 
. 2
       
   c We NC                 1c   
    AddC   ⋃1 ∼    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC         
     c We NC        NC   Nc   Spac    
   1c     
     Spac   Tc   
  Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c       | 
| 257 |   | abexv 4325 | 
. . 3
          c We NC       | 
| 258 |   | 2ndex 5113 | 
. . . . . 6
        | 
| 259 |   | 1stex 4740 | 
. . . . . . . 8
        | 
| 260 | 259 | cnvex 5103 | 
. . . . . . 7
         | 
| 261 |   | snex 4112 | 
. . . . . . 7
   1c      | 
| 262 | 260, 261 | imaex 4748 | 
. . . . . 6
       1c       | 
| 263 | 258, 262 | resex 5118 | 
. . . . 5
            1c   
    | 
| 264 |   | addcfnex 5825 | 
. . . . . 6
  AddC     | 
| 265 | 264 | cnvex 5103 | 
. . . . 5
    AddC     | 
| 266 | 263, 265 | coex 4751 | 
. . . 4
             1c        AddC       | 
| 267 |   | ssetex 4745 | 
. . . . . . . . . . . . 13
   S      | 
| 268 | 267 | ins3ex 5799 | 
. . . . . . . . . . . . . . . . . 18
  Ins3  S      | 
| 269 | 267 | complex 4105 | 
. . . . . . . . . . . . . . . . . . . . . . 23
  ∼  S      | 
| 270 | 269 | cnvex 5103 | 
. . . . . . . . . . . . . . . . . . . . . 22
    ∼  S      | 
| 271 | 267 | cnvex 5103 | 
. . . . . . . . . . . . . . . . . . . . . . 23
    S
     | 
| 272 | 45 | imageex 5802 | 
. . . . . . . . . . . . . . . . . . . . . . . . 25
  Image    
          NC       NC        2c ↑c
         | 
| 273 | 267, 272 | coex 4751 | 
. . . . . . . . . . . . . . . . . . . . . . . 24
    S
   Image    
          NC       NC        2c ↑c
          | 
| 274 | 273 | fixex 5790 | 
. . . . . . . . . . . . . . . . . . . . . . 23
     S    Image    
          NC       NC        2c ↑c
          | 
| 275 | 271, 274 | resex 5118 | 
. . . . . . . . . . . . . . . . . . . . . 22
     S       S    Image    
          NC       NC        2c ↑c
           | 
| 276 | 270, 275 | txpex 5786 | 
. . . . . . . . . . . . . . . . . . . . 21
     ∼  S       S       S    Image    
          NC       NC        2c ↑c
            | 
| 277 | 276 | rnex 5108 | 
. . . . . . . . . . . . . . . . . . . 20
       ∼  S       S       S    Image    
          NC       NC        2c ↑c
            | 
| 278 | 277 | complex 4105 | 
. . . . . . . . . . . . . . . . . . 19
  ∼      ∼  S       S       S    Image    
          NC       NC        2c ↑c
            | 
| 279 | 278 | ins2ex 5798 | 
. . . . . . . . . . . . . . . . . 18
  Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
            | 
| 280 | 268, 279 | symdifex 4109 | 
. . . . . . . . . . . . . . . . 17
    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
             | 
| 281 | 280, 125 | imaex 4748 | 
. . . . . . . . . . . . . . . 16
     Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 282 | 281 | complex 4105 | 
. . . . . . . . . . . . . . 15
  ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 283 | 282 | cnvex 5103 | 
. . . . . . . . . . . . . 14
    ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 284 | 283 | siex 4754 | 
. . . . . . . . . . . . 13
   SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c      | 
| 285 | 267, 284 | coex 4751 | 
. . . . . . . . . . . 12
    S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       | 
| 286 | 285 | cnvex 5103 | 
. . . . . . . . . . 11
     S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c       | 
| 287 |   | ncsex 6112 | 
. . . . . . . . . . 11
  NC     | 
| 288 | 286, 287 | resex 5118 | 
. . . . . . . . . 10
      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC       | 
| 289 | 288 | cnvex 5103 | 
. . . . . . . . 9
       S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC       | 
| 290 | 289 | siex 4754 | 
. . . . . . . 8
   SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC       | 
| 291 |   | tcfnex 6245 | 
. . . . . . . . . . . . 13
  TcFn     | 
| 292 | 291 | cnvex 5103 | 
. . . . . . . . . . . 12
   TcFn     | 
| 293 | 292 | siex 4754 | 
. . . . . . . . . . 11
   SI  TcFn     | 
| 294 | 293 | siex 4754 | 
. . . . . . . . . 10
   SI  SI  TcFn     | 
| 295 | 258 | cnvex 5103 | 
. . . . . . . . . . . . . . . . . . 19
         | 
| 296 | 295, 261 | imaex 4748 | 
. . . . . . . . . . . . . . . . . 18
       1c       | 
| 297 | 259, 296 | resex 5118 | 
. . . . . . . . . . . . . . . . 17
            1c   
    | 
| 298 | 297 | cnvex 5103 | 
. . . . . . . . . . . . . . . 16
             1c        | 
| 299 | 264, 298 | coex 4751 | 
. . . . . . . . . . . . . . 15
    AddC              1c         | 
| 300 |   | snex 4112 | 
. . . . . . . . . . . . . . . . . . 19
   2c      | 
| 301 | 295, 300 | imaex 4748 | 
. . . . . . . . . . . . . . . . . 18
       2c       | 
| 302 | 259, 301 | resex 5118 | 
. . . . . . . . . . . . . . . . 17
            2c   
    | 
| 303 | 302 | cnvex 5103 | 
. . . . . . . . . . . . . . . 16
             2c        | 
| 304 | 264, 303 | coex 4751 | 
. . . . . . . . . . . . . . 15
    AddC              2c         | 
| 305 | 299, 304 | unex 4107 | 
. . . . . . . . . . . . . 14
     AddC        
     1c         AddC              2c          | 
| 306 | 305 | cnvex 5103 | 
. . . . . . . . . . . . 13
      AddC              1c    
    AddC        
     2c          | 
| 307 | 292, 306 | coex 4751 | 
. . . . . . . . . . . 12
    TcFn       AddC              1c         AddC        
     2c           | 
| 308 |   | nncex 4397 | 
. . . . . . . . . . . 12
  Nn     | 
| 309 | 307, 308 | resex 5118 | 
. . . . . . . . . . 11
     TcFn       AddC              1c    
    AddC        
     2c         Nn       | 
| 310 | 309, 289 | coex 4751 | 
. . . . . . . . . 10
      TcFn      
AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        | 
| 311 | 294, 310 | txpex 5786 | 
. . . . . . . . 9
    SI
 SI  TcFn       TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC         | 
| 312 | 125 | pw1ex 4304 | 
. . . . . . . . 9
   1
1c  
  | 
| 313 | 311, 312 | imaex 4748 | 
. . . . . . . 8
     SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c      | 
| 314 | 290, 313 | difex 4108 | 
. . . . . . 7
    SI
     S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c       | 
| 315 | 287 | pw1ex 4304 | 
. . . . . . . . 9
   1 NC     | 
| 316 | 315 | pw1ex 4304 | 
. . . . . . . 8
   1  1 NC     | 
| 317 | 316 | pw1ex 4304 | 
. . . . . . 7
   1  1  1 NC     | 
| 318 | 314, 317 | imaex 4748 | 
. . . . . 6
     SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC       | 
| 319 | 318 | complex 4105 | 
. . . . 5
  ∼    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC       | 
| 320 | 319 | uni1ex 4294 | 
. . . 4
 
⋃1 ∼    SI      S    
SI   ∼
   Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC       | 
| 321 | 266, 320 | imaex 4748 | 
. . 3
              1c        AddC   ⋃1 ∼    SI      S
    SI   ∼    Ins3  S    Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC        | 
| 322 | 257, 321 | unex 4107 | 
. 2
       
   c We NC                 1c   
    AddC   ⋃1 ∼    SI      S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC        SI  SI  TcFn  
    TcFn       AddC              1c    
    AddC        
     2c         Nn          S     SI   ∼    Ins3  S
   Ins2 ∼      ∼
 S       S       S    Image               NC       NC        2c ↑c
         1c     NC      1 1c    1  1  1 NC         | 
| 323 | 256, 322 | eqeltrri 2424 | 
1
        
 c We NC        NC   Nc   Spac      
 1c
          Spac   Tc      Fin     Nc   Spac   Tc   
    Tc Nc   Spac      
1c 
  Nc   Spac   Tc   
    Tc Nc   Spac      
2c           |