Step | Hyp | Ref
| Expression |
1 | | unab 3521 |
. . 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 4756 |
. . . . . 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 2862 |
. . . . . . . . . . 11
 |
4 | 3 | eluni1 4173 |
. . . . . . . . . 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 4111 |
. . . . . . . . . . 11
 
 |
6 | 5 | elcompl 3225 |
. . . . . . . . . 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 4946 |
. . . . . . . . . . . 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 6282 |
. . . . . . . . . . . . . . . . . 18
 NC Spac  
Clos1          NC NC 2c ↑c
      |
9 | 8 | nceqd 6110 |
. . . . . . . . . . . . . . . . 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 6160 |
. . . . . . . . . . . . . . . . . . . 20
 NC Tc NC  |
12 | | spacval 6282 |
. . . . . . . . . . . . . . . . . . . 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 6110 |
. . . . . . . . . . . . . . . . . . . 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 3221 |
. . . . . . . . . . . . . . . 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 4111 |
. . . . . . . . . . . . . . . . . . . 20
     |
24 | 23, 3 | opsnelsi 5774 |
. . . . . . . . . . . . . . . . . . 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 4893 |
. . . . . . . . . . . . . . . . . . 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 4950 |
. . . . . . . . . . . . . . . . . . . 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 4893 |
. . . . . . . . . . . . . . . . . . . . . 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 4884 |
. . . . . . . . . . . . . . . . . . . . . . 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 4111 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
 
 |
30 | 29 | brsnsi1 5775 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 4111 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
 
 |
40 | | breq1 4642 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 2894 |
. . . . . . . . . . . . . . . . . . . . . . . . 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 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 4640 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 6281 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
  
  NC NC 2c ↑c
    |
46 | 45, 29 | nchoicelem10 6298 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 2862 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
 |
49 | 48, 3 | brssetsn 4759 |
. . . . . . . . . . . . . . . . . . . . . . . . . 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 5876 |
. . . . . . . . . . . . . . . . . . . . . . 23
Clos1          NC NC 2c ↑c
     |
55 | | eleq1 2413 |
. . . . . . . . . . . . . . . . . . . . . . 23
 Clos1          NC NC
2c
↑c      Clos1          NC NC
2c
↑c    
   |
56 | 54, 55 | ceqsexv 2894 |
. . . . . . . . . . . . . . . . . . . . . 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 6129 |
. . . . . . . . . . . . . . . . . . 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 4948 |
. . . . . . . . . . . . . . . . . . 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 5782 |
. . . . . . . . . . . . . . . . . . . . 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 4111 |
. . . . . . . . . . . . . . . . . . . . . . . 24
 
 |
69 | 68, 23 | opsnelsi 5774 |
. . . . . . . . . . . . . . . . . . . . . . 23
              SI SI TcFn          SI TcFn |
70 | | vex 2862 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
 |
71 | 70, 29 | opsnelsi 5774 |
. . . . . . . . . . . . . . . . . . . . . . . 24
          SI TcFn  
   TcFn |
72 | | df-br 4640 |
. . . . . . . . . . . . . . . . . . . . . . . 24
  TcFn       TcFn |
73 | | brcnv 4892 |
. . . . . . . . . . . . . . . . . . . . . . . 24
  TcFn    TcFn  |
74 | 71, 72, 73 | 3bitr2i 264 |
. . . . . . . . . . . . . . . . . . . . . . 23
          SI TcFn   TcFn  |
75 | | vex 2862 |
. . . . . . . . . . . . . . . . . . . . . . . 24
 |
76 | 75 | brtcfn 6246 |
. . . . . . . . . . . . . . . . . . . . . . 23
   TcFn Tc   |
77 | 69, 74, 76 | 3bitri 262 |
. . . . . . . . . . . . . . . . . . . . . 22
              SI SI TcFn Tc   |
78 | | opelco 4884 |
. . . . . . . . . . . . . . . . . . . . . . 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 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . 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 4949 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 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 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 4883 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 5775 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 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 4111 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
 
 |
92 | | breq1 4642 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 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 2894 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 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 4640 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 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 6298 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 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 2862 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
 |
100 | 99, 48 | brssetsn 4759 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 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 5876 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Clos1          NC NC 2c ↑c
     |
112 | 111 | eqnc2 6129 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 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 4949 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
    TcFn   AddC       1c   AddC  
    2c     Nn       TcFn   AddC       1c   AddC  
    2c        Nn   |
116 | | brco 4883 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 28
   TcFn  
AddC       1c  
AddC  
    2c              AddC       1c   AddC  
    2c      TcFn     |
117 | | brcnv 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
    AddC       1c   AddC  
    2c       AddC       1c  
AddC  
    2c       |
118 | | brun 4692 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
   AddC       1c   AddC  
    2c       AddC       1c     AddC       2c       |
119 | | brco 4883 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
  AddC       1c              1c   AddC    |
120 | | brcnv 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
        1c  
      1c     |
121 | | brres 4949 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
       1c  
  
    1c    |
122 | | eliniseg 5020 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
     1c  1c |
123 | 122 | anbi2i 675 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
   
    1c    
 1c  |
124 | 121, 123 | bitri 240 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
       1c  
  
 1c  |
125 | | 1cex 4142 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
1c
 |
126 | 99, 125 | op1st2nd 5790 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 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 4588 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
  1c  |
131 | | breq1 4642 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
   1c  AddC   1c AddC
   |
132 | 130, 131 | ceqsexv 2894 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
     
1c AddC    1c AddC   |
133 | 119, 129,
132 | 3bitri 262 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
  AddC       1c      1c AddC   |
134 | 99, 125 | braddcfn 5826 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
  
1c AddC 
1c
  |
135 | | eqcom 2355 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
 
1c
 1c  |
136 | 133, 134,
135 | 3bitri 262 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
  AddC       1c    
1c  |
137 | | brco 4883 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
  AddC       2c              2c   AddC    |
138 | | brcnv 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
        2c  
      2c     |
139 | | brres 4949 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
       2c  
  
    2c    |
140 | | eliniseg 5020 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
     2c  2c |
141 | 140 | anbi2i 675 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
   
    2c    
 2c  |
142 | 139, 141 | bitri 240 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 38
       2c  
  
 2c  |
143 | | 2nc 6168 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . 40
2c
NC |
144 | 143 | elexi 2868 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . 39
2c
 |
145 | 99, 144 | op1st2nd 5790 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . 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 4588 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
  2c  |
150 | | breq1 4642 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . 36
   2c  AddC   2c AddC
   |
151 | 149, 150 | ceqsexv 2894 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. 35
     
2c AddC    2c AddC   |
152 | 137, 148,
151 | 3bitri 262 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34
  AddC       2c      2c AddC   |
153 | 99, 144 | braddcfn 5826 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 4892 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32
  TcFn    TcFn  |
159 | 3 | brtcfn 6246 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 6157 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Tc
 |
166 | | addceq1 4383 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31
 Tc 
1c
Tc 1c  |
167 | 166 | eqeq2d 2364 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
 Tc  
1c
Tc 1c   |
168 | | addceq1 4383 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2894 |
. . . . . . . . . . . . . . . . . . . . . . . . . . . 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 6117 |
. . . . . . . . . . . . . . . . . . . . . . . 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 6243 |
. . . . . . . . . . . . . . . . . . . . . . . . . 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 2894 |
. . . . . . . . . . . . . . . . . . . . . . 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 6157 |
. . . . . . . . . . . . . . . . . . . 20
Tc
 |
192 | | sneq 3744 |
. . . . . . . . . . . . . . . . . . . . . . 23
 Tc   Tc    |
193 | | clos1eq1 5874 |
. . . . . . . . . . . . . . . . . . . . . . 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 6110 |
. . . . . . . . . . . . . . . . . . . . . . 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
     |