| Step | Hyp | Ref
| Expression |
| 1 | | simp1 1061 |
. . . . . 6
 
 
  
  |
| 2 | | ssrab2 3687 |
. . . . . . 7


 |
| 3 | 2 | a1i 11 |
. . . . . 6
 
 
  


  |
| 4 | | simp3 1063 |
. . . . . . 7
 
 
  

  |
| 5 | | rabn0 3958 |
. . . . . . 7
  

  |
| 6 | 4, 5 | sylibr 224 |
. . . . . 6
 
 
  

   |
| 7 | | nfrab1 3122 |
. . . . . . . 8
  
  |
| 8 | 7 | nfcrii 2757 |
. . . . . . 7
        |
| 9 | 8 | bnj1228 31079 |
. . . . . 6
 
    
    

     |
| 10 | 1, 3, 6, 9 | syl3anc 1326 |
. . . . 5
 
 
  
    

     |
| 11 | | biid 251 |
. . . . 5
    
      
   
  
  
    
      |
| 12 | | nfv 1843 |
. . . . . . 7
  |
| 13 | | nfra1 2941 |
. . . . . . 7
  

  |
| 14 | | nfre1 3005 |
. . . . . . 7
  
 |
| 15 | 12, 13, 14 | nf3an 1831 |
. . . . . 6
    
    |
| 16 | 15 | nf5ri 2065 |
. . . . 5
 
 
  
    
     |
| 17 | 10, 11, 16 | bnj1521 30921 |
. . . 4
 
 
  
       


         |
| 18 | | eqid 2622 |
. . . . . 6

 
  |
| 19 | 18, 11 | bnj1212 30870 |
. . . . 5
    
      
      |
| 20 | | nfra1 2941 |
. . . . . . . 8
        |
| 21 | | simp3 1063 |
. . . . . . . . . . . . . . 15
    

           |
| 22 | 21 | bnj1211 30868 |
. . . . . . . . . . . . . 14
    

              |
| 23 | | con2b 349 |
. . . . . . . . . . . . . . 15
  

  
  
     |
| 24 | 23 | albii 1747 |
. . . . . . . . . . . . . 14
             
     |
| 25 | 22, 24 | sylib 208 |
. . . . . . . . . . . . 13
    

        
     |
| 26 | | simp2 1062 |
. . . . . . . . . . . . 13
    

        |
| 27 | | sp 2053 |
. . . . . . . . . . . . 13
     
     
     |
| 28 | 25, 26, 27 | sylc 65 |
. . . . . . . . . . . 12
    

   

   |
| 29 | | simp1 1061 |
. . . . . . . . . . . 12
    

      |
| 30 | | nfcv 2764 |
. . . . . . . . . . . . . . . . . 18
   |
| 31 | 30 | elrabsf 3474 |
. . . . . . . . . . . . . . . . 17
         |
| 32 | | vex 3203 |
. . . . . . . . . . . . . . . . . . 19
 |
| 33 | | sbcng 3476 |
. . . . . . . . . . . . . . . . . . 19
  

  ![]. ].](_drbrack.gif)    |
| 34 | 32, 33 | ax-mp 5 |
. . . . . . . . . . . . . . . . . 18
     ![]. ].](_drbrack.gif)   |
| 35 | 34 | anbi2i 730 |
. . . . . . . . . . . . . . . . 17
    

  ![]. ].](_drbrack.gif)    |
| 36 | 31, 35 | bitri 264 |
. . . . . . . . . . . . . . . 16
      ![]. ].](_drbrack.gif)    |
| 37 | 36 | notbii 310 |
. . . . . . . . . . . . . . 15
 


  ![]. ].](_drbrack.gif)    |
| 38 | | imnan 438 |
. . . . . . . . . . . . . . 15
    ![]. ].](_drbrack.gif) 
   ![]. ].](_drbrack.gif)    |
| 39 | 37, 38 | sylbb2 228 |
. . . . . . . . . . . . . 14
 


  ![]. ].](_drbrack.gif)    |
| 40 | 39 | imp 445 |
. . . . . . . . . . . . 13
       ![]. ].](_drbrack.gif)   |
| 41 | 40 | notnotrd 128 |
. . . . . . . . . . . 12
       ![]. ].](_drbrack.gif)   |
| 42 | 28, 29, 41 | syl2anc 693 |
. . . . . . . . . . 11
    

      ![]. ].](_drbrack.gif)   |
| 43 | 42 | 3expa 1265 |
. . . . . . . . . 10
            
 ![]. ].](_drbrack.gif)   |
| 44 | 43 | expcom 451 |
. . . . . . . . 9
 

  
     
 ![]. ].](_drbrack.gif)    |
| 45 | 44 | expd 452 |
. . . . . . . 8
 

  

     ![]. ].](_drbrack.gif)     |
| 46 | 20, 45 | ralrimi 2957 |
. . . . . . 7
 

  

  
  ![]. ].](_drbrack.gif)    |
| 47 | | bnj1204.1 |
. . . . . . 7
     
 ![]. ].](_drbrack.gif)    |
| 48 | 46, 47 | sylibr 224 |
. . . . . 6
 

  
  |
| 49 | 48 | 3ad2ant3 1084 |
. . . . 5
    
      
      |
| 50 | | simp12 1092 |
. . . . 5
    
      
    
    |
| 51 | | simp3 1063 |
. . . . . . 7
      
    |
| 52 | 51 | bnj1211 30868 |
. . . . . 6
              |
| 53 | | simp1 1061 |
. . . . . 6
        |
| 54 | | simp2 1062 |
. . . . . 6
        |
| 55 | | sp 2053 |
. . . . . 6
   
         |
| 56 | 52, 53, 54, 55 | syl3c 66 |
. . . . 5
        |
| 57 | 19, 49, 50, 56 | syl3anc 1326 |
. . . 4
    
      
      |
| 58 | | rabid 3116 |
. . . . . 6
       |
| 59 | 58 | simprbi 480 |
. . . . 5
  
  |
| 60 | 59 | 3ad2ant2 1083 |
. . . 4
    
      
      |
| 61 | 17, 57, 60 | bnj1304 30890 |
. . 3
 
  
  |
| 62 | 61 | bnj1224 30872 |
. 2
 
 
 

  |
| 63 | | dfral2 2994 |
. 2
 

  |
| 64 | 62, 63 | sylibr 224 |
1
 
 
     |