| Step | Hyp | Ref
| Expression |
| 1 | | opabssxp 4738 |
. . 3
     

  
  |
| 2 | 1 | a1i 9 |
. 2
 

DECID
     

  
   |
| 3 | | neirr 2376 |
. . . . . 6
 |
| 4 | | df-br 4035 |
. . . . . . 7
     
 

  
  
     

    |
| 5 | | neeq1 2380 |
. . . . . . . . 9
 
   |
| 6 | | neeq2 2381 |
. . . . . . . . 9
 
   |
| 7 | 5, 6 | opelopab2 4306 |
. . . . . . . 8
 
          

 
   |
| 8 | 7 | anidms 397 |
. . . . . . 7
        
 

 
   |
| 9 | 4, 8 | bitrid 192 |
. . . . . 6
        

      |
| 10 | 3, 9 | mtbiri 676 |
. . . . 5
     
 

     |
| 11 | 10 | rgen 2550 |
. . . 4

    
 

    |
| 12 | 11 | a1i 9 |
. . 3
 

DECID
       

     |
| 13 | | df-br 4035 |
. . . . . . . 8
     
 

  
  
     

    |
| 14 | | neeq2 2381 |
. . . . . . . . 9
 
   |
| 15 | 5, 14 | opelopab2 4306 |
. . . . . . . 8
 
          

 
   |
| 16 | 13, 15 | bitrid 192 |
. . . . . . 7
 
        

      |
| 17 | | df-br 4035 |
. . . . . . . 8
     
 

  
  
     

    |
| 18 | | neeq1 2380 |
. . . . . . . . . . 11
 
   |
| 19 | | neeq2 2381 |
. . . . . . . . . . 11
 
   |
| 20 | 18, 19 | opelopab2 4306 |
. . . . . . . . . 10
 
          

 
   |
| 21 | 20 | ancoms 268 |
. . . . . . . . 9
 
          

 
   |
| 22 | | necom 2451 |
. . . . . . . . 9

  |
| 23 | 21, 22 | bitrdi 196 |
. . . . . . . 8
 
          

 
   |
| 24 | 17, 23 | bitrid 192 |
. . . . . . 7
 
        

      |
| 25 | 16, 24 | bitr4d 191 |
. . . . . 6
 
        

         

      |
| 26 | 25 | biimpd 144 |
. . . . 5
 
        

         

      |
| 27 | 26 | rgen2 2583 |
. . . 4


     
 

         

     |
| 28 | 27 | a1i 9 |
. . 3
 

DECID
 
       

         

      |
| 29 | 12, 28 | jca 306 |
. 2
 

DECID
 
    
 

    
       

         

       |
| 30 | 16 | 3adant3 1019 |
. . . . . 6
 
        

      |
| 31 | 30 | adantl 277 |
. . . . 5
   
DECID

 
     
 

  
   |
| 32 | | simpr 110 |
. . . . . . . . . . 11
    

DECID

      |
| 33 | | simplr 528 |
. . . . . . . . . . 11
    

DECID

      |
| 34 | 32, 33 | eqnetrrd 2393 |
. . . . . . . . . 10
    

DECID

      |
| 35 | 34 | necomd 2453 |
. . . . . . . . 9
    

DECID

      |
| 36 | 35 | olcd 735 |
. . . . . . . 8
    

DECID

    
   |
| 37 | | simpr 110 |
. . . . . . . . . 10
    

DECID

  
   |
| 38 | 37 | neqned 2374 |
. . . . . . . . 9
    

DECID

  
   |
| 39 | 38 | orcd 734 |
. . . . . . . 8
    

DECID

  
 
   |
| 40 | | equequ2 1727 |
. . . . . . . . . . 11
 
   |
| 41 | 40 | dcbid 839 |
. . . . . . . . . 10
 DECID
DECID
   |
| 42 | | equequ1 1726 |
. . . . . . . . . . . . 13
 
   |
| 43 | 42 | dcbid 839 |
. . . . . . . . . . . 12
 DECID
DECID
   |
| 44 | 43 | ralbidv 2497 |
. . . . . . . . . . 11
  
DECID
 DECID    |
| 45 | | simpll 527 |
. . . . . . . . . . 11
     DECID 
   

DECID
  |
| 46 | | simplr1 1041 |
. . . . . . . . . . 11
     DECID 
     |
| 47 | 44, 45, 46 | rspcdva 2873 |
. . . . . . . . . 10
     DECID 
   
DECID
  |
| 48 | | simplr3 1043 |
. . . . . . . . . 10
     DECID 
     |
| 49 | 41, 47, 48 | rspcdva 2873 |
. . . . . . . . 9
     DECID 
  
DECID
  |
| 50 | | exmiddc 837 |
. . . . . . . . 9
DECID

   |
| 51 | 49, 50 | syl 14 |
. . . . . . . 8
     DECID 
       |
| 52 | 36, 39, 51 | mpjaodan 799 |
. . . . . . 7
     DECID 
       |
| 53 | | df-br 4035 |
. . . . . . . . . 10
     
 

  
  
     

    |
| 54 | | neeq2 2381 |
. . . . . . . . . . . 12
 
   |
| 55 | 5, 54 | opelopab2 4306 |
. . . . . . . . . . 11
 
          

 
   |
| 56 | 55 | 3adant2 1018 |
. . . . . . . . . 10
 
          

 
   |
| 57 | 53, 56 | bitrid 192 |
. . . . . . . . 9
 
        

      |
| 58 | | df-br 4035 |
. . . . . . . . . 10
     
 

  
  
     

    |
| 59 | | neeq2 2381 |
. . . . . . . . . . . 12
 
   |
| 60 | 18, 59 | opelopab2 4306 |
. . . . . . . . . . 11
 
          

 
   |
| 61 | 60 | 3adant1 1017 |
. . . . . . . . . 10
 
          

 
   |
| 62 | 58, 61 | bitrid 192 |
. . . . . . . . 9
 
        

      |
| 63 | 57, 62 | orbi12d 794 |
. . . . . . . 8
 
                    

         |
| 64 | 63 | ad2antlr 489 |
. . . . . . 7
     DECID 
           

         

         |
| 65 | 52, 64 | mpbird 167 |
. . . . . 6
     DECID 
          

         

      |
| 66 | 65 | ex 115 |
. . . . 5
   
DECID

 

     
 

         

       |
| 67 | 31, 66 | sylbid 150 |
. . . 4
   
DECID

 
     
 

          

         

       |
| 68 | 67 | ralrimivvva 2580 |
. . 3
 

DECID
 

       

                     

       |
| 69 | 16 | notbid 668 |
. . . . . . 7
 
            
   |
| 70 | | df-ne 2368 |
. . . . . . . 8

  |
| 71 | 70 | notbii 669 |
. . . . . . 7

  |
| 72 | 69, 71 | bitrdi 196 |
. . . . . 6
 
                |
| 73 | 72 | adantl 277 |
. . . . 5
   
DECID

 
     
 

  
   |
| 74 | | equequ2 1727 |
. . . . . . . 8
 
   |
| 75 | 74 | dcbid 839 |
. . . . . . 7
 DECID
DECID
   |
| 76 | | simpl 109 |
. . . . . . . 8
   
DECID

 


DECID
  |
| 77 | | simprl 529 |
. . . . . . . 8
   
DECID

 
  |
| 78 | 44, 76, 77 | rspcdva 2873 |
. . . . . . 7
   
DECID

 

DECID
  |
| 79 | | simprr 531 |
. . . . . . 7
   
DECID

 
  |
| 80 | 75, 78, 79 | rspcdva 2873 |
. . . . . 6
   
DECID

 
DECID
  |
| 81 | | notnotrdc 844 |
. . . . . 6
DECID

   |
| 82 | 80, 81 | syl 14 |
. . . . 5
   
DECID

 

   |
| 83 | 73, 82 | sylbid 150 |
. . . 4
   
DECID

 
     
 

      |
| 84 | 83 | ralrimivva 2579 |
. . 3
 

DECID
 

              |
| 85 | 68, 84 | jca 306 |
. 2
 

DECID
 


     
 

          

         

     

       

       |
| 86 | | dftap2 7334 |
. 2
          TAp     
 

            

                       

      


       

                     

     

       

        |
| 87 | 2, 29, 85, 86 | syl3anbrc 1183 |
1
 

DECID
     

  TAp   |