| Step | Hyp | Ref
| Expression |
| 1 | | breq1 4037 |
. . . . 5


   |
| 2 | | uneq2 3312 |
. . . . . 6

      |
| 3 | 2 | breq1d 4044 |
. . . . 5

    
       |
| 4 | 1, 3 | anbi12d 473 |
. . . 4

  

  
   
     |
| 5 | 4 | rexbidv 2498 |
. . 3

  


  
    
     |
| 6 | | breq1 4037 |
. . . . 5
 
   |
| 7 | | uneq2 3312 |
. . . . . 6
 
     |
| 8 | 7 | breq1d 4044 |
. . . . 5
   
 
       |
| 9 | 6, 8 | anbi12d 473 |
. . . 4
    
  


       |
| 10 | 9 | rexbidv 2498 |
. . 3
  



  
          |
| 11 | | breq1 4037 |
. . . . 5
             |
| 12 | | uneq2 3312 |
. . . . . 6
               |
| 13 | 12 | breq1d 4044 |
. . . . 5
        
            |
| 14 | 11, 13 | anbi12d 473 |
. . . 4
       
   
           
     |
| 15 | 14 | rexbidv 2498 |
. . 3
             
     
           |
| 16 | | breq1 4037 |
. . . . 5
 
   |
| 17 | | uneq2 3312 |
. . . . . 6
 
     |
| 18 | 17 | breq1d 4044 |
. . . . 5
   
 
       |
| 19 | 16, 18 | anbi12d 473 |
. . . 4
    
  


       |
| 20 | 19 | rexbidv 2498 |
. . 3
  



  
          |
| 21 | | peano1 4631 |
. . . . 5
 |
| 22 | 21 | a1i 9 |
. . . 4

  |
| 23 | | 0ex 4161 |
. . . . . 6
 |
| 24 | 23 | enref 6833 |
. . . . 5
 |
| 25 | 24 | a1i 9 |
. . . 4
   |
| 26 | | hashunlem.an |
. . . . 5
   |
| 27 | | un0 3485 |
. . . . . 6
   |
| 28 | 27 | a1i 9 |
. . . . 5
     |
| 29 | | hashunlem.n |
. . . . . 6
   |
| 30 | | nna0 6541 |
. . . . . 6
     |
| 31 | 29, 30 | syl 14 |
. . . . 5
     |
| 32 | 26, 28, 31 | 3brtr4d 4066 |
. . . 4
   
   |
| 33 | | breq2 4038 |
. . . . . 6


   |
| 34 | | oveq2 5933 |
. . . . . . 7

      |
| 35 | 34 | breq2d 4046 |
. . . . . 6

   
        |
| 36 | 33, 35 | anbi12d 473 |
. . . . 5

  
 
 
 
 
     |
| 37 | 36 | rspcev 2868 |
. . . 4
 
        

 
    |
| 38 | 22, 25, 32, 37 | syl12anc 1247 |
. . 3
  

 
    |
| 39 | | peano2 4632 |
. . . . . . . 8

  |
| 40 | 39 | ad2antlr 489 |
. . . . . . 7
      
     


   
  |
| 41 | | simp-4r 542 |
. . . . . . . 8
      
     


      |
| 42 | | vex 2766 |
. . . . . . . . . 10
 |
| 43 | 42 | a1i 9 |
. . . . . . . . 9
      
     


      |
| 44 | | simprr 531 |
. . . . . . . . . . 11
    
        |
| 45 | 44 | ad2antrr 488 |
. . . . . . . . . 10
      
     


        |
| 46 | 45 | eldifbd 3169 |
. . . . . . . . 9
      
     


   
  |
| 47 | 43, 46 | eldifd 3167 |
. . . . . . . 8
      
     


        |
| 48 | | simplr 528 |
. . . . . . . 8
      
     


      |
| 49 | | simprl 529 |
. . . . . . . 8
      
     


      |
| 50 | | fiunsnnn 6951 |
. . . . . . . 8
      
        |
| 51 | 41, 47, 48, 49, 50 | syl22anc 1250 |
. . . . . . 7
      
     


       
  |
| 52 | | hashunlem.a |
. . . . . . . . . . 11
   |
| 53 | 52 | ad4antr 494 |
. . . . . . . . . 10
      
     


      |
| 54 | | simprl 529 |
. . . . . . . . . . . 12
    
      |
| 55 | 54 | ad2antrr 488 |
. . . . . . . . . . 11
      
     


      |
| 56 | | hashunlem.disj |
. . . . . . . . . . . 12
     |
| 57 | 56 | ad4antr 494 |
. . . . . . . . . . 11
      
     


        |
| 58 | | incom 3356 |
. . . . . . . . . . . 12
     |
| 59 | | incom 3356 |
. . . . . . . . . . . . . 14
     |
| 60 | 59 | eqeq1i 2204 |
. . . . . . . . . . . . 13
  
    |
| 61 | | ssdisj 3508 |
. . . . . . . . . . . . 13
 

  
   |
| 62 | 60, 61 | sylan2b 287 |
. . . . . . . . . . . 12
 

  
   |
| 63 | 58, 62 | eqtr3id 2243 |
. . . . . . . . . . 11
 

      |
| 64 | 55, 57, 63 | syl2anc 411 |
. . . . . . . . . 10
      
     


        |
| 65 | | unfidisj 6992 |
. . . . . . . . . 10
 
  
    |
| 66 | 53, 41, 64, 65 | syl3anc 1249 |
. . . . . . . . 9
      
     


        |
| 67 | 45 | eldifad 3168 |
. . . . . . . . . . . 12
      
     


      |
| 68 | | minel 3513 |
. . . . . . . . . . . 12
  
 
  |
| 69 | 67, 57, 68 | syl2anc 411 |
. . . . . . . . . . 11
      
     


   
  |
| 70 | | ioran 753 |
. . . . . . . . . . . 12
 
 
   |
| 71 | | elun 3305 |
. . . . . . . . . . . 12
  

   |
| 72 | 70, 71 | xchnxbir 682 |
. . . . . . . . . . 11
  

   |
| 73 | 69, 46, 72 | sylanbrc 417 |
. . . . . . . . . 10
      
     


   

   |
| 74 | 43, 73 | eldifd 3167 |
. . . . . . . . 9
      
     


          |
| 75 | 29 | ad4antr 494 |
. . . . . . . . . 10
      
     


      |
| 76 | | nnacl 6547 |
. . . . . . . . . 10
 
     |
| 77 | 75, 48, 76 | syl2anc 411 |
. . . . . . . . 9
      
     


        |
| 78 | | simprr 531 |
. . . . . . . . 9
      
     


          |
| 79 | | fiunsnnn 6951 |
. . . . . . . . 9
            
     
 
   
    |
| 80 | 66, 74, 77, 78, 79 | syl22anc 1250 |
. . . . . . . 8
      
     


         
    |
| 81 | | unass 3321 |
. . . . . . . . . 10
             |
| 82 | 81 | a1i 9 |
. . . . . . . . 9
      
     


                  |
| 83 | 82 | eqcomd 2202 |
. . . . . . . 8
      
     


                  |
| 84 | | nnasuc 6543 |
. . . . . . . . 9
 
   
   |
| 85 | 75, 48, 84 | syl2anc 411 |
. . . . . . . 8
      
     


      
   |
| 86 | 80, 83, 85 | 3brtr4d 4066 |
. . . . . . 7
      
     


              |
| 87 | | breq2 4038 |
. . . . . . . . 9
     
   
   |
| 88 | | oveq2 5933 |
. . . . . . . . . 10
       |
| 89 | 88 | breq2d 4046 |
. . . . . . . . 9
         
           |
| 90 | 87, 89 | anbi12d 473 |
. . . . . . . 8
       
     
 
                 |
| 91 | 90 | rspcev 2868 |
. . . . . . 7
      

     
   
     
          |
| 92 | 40, 51, 86, 91 | syl12anc 1247 |
. . . . . 6
      
     


          
          |
| 93 | 92 | ex 115 |
. . . . 5
   
 
        
   
     
           |
| 94 | 93 | rexlimdva 2614 |
. . . 4
    
                  
           |
| 95 | | breq2 4038 |
. . . . . 6
             |
| 96 | | oveq2 5933 |
. . . . . . 7
       |
| 97 | 96 | breq2d 4046 |
. . . . . 6
        
            |
| 98 | 95, 97 | anbi12d 473 |
. . . . 5
       
             
           |
| 99 | 98 | cbvrexv 2730 |
. . . 4
               
      
     
    |
| 100 | 94, 99 | imbitrrdi 162 |
. . 3
    
                  
           |
| 101 | | hashunlem.b |
. . 3
   |
| 102 | 5, 10, 15, 20, 38, 100, 101 | findcard2sd 6962 |
. 2
  


     |
| 103 | | simprrr 540 |
. . 3
 
  
            |
| 104 | | hashunlem.bm |
. . . . . . 7
   |
| 105 | 104 | ensymd 6851 |
. . . . . 6
   |
| 106 | | simprrl 539 |
. . . . . 6
 
  
        |
| 107 | | entr 6852 |
. . . . . 6
     |
| 108 | 105, 106,
107 | syl2an2r 595 |
. . . . 5
 
  
        |
| 109 | | hashunlem.m |
. . . . . 6
   |
| 110 | | simprl 529 |
. . . . . 6
 
  
        |
| 111 | | nneneq 6927 |
. . . . . 6
 
     |
| 112 | 109, 110,
111 | syl2an2r 595 |
. . . . 5
 
  
          |
| 113 | 108, 112 | mpbid 147 |
. . . 4
 
  
        |
| 114 | 113 | oveq2d 5941 |
. . 3
 
  
            |
| 115 | 103, 114 | breqtrrd 4062 |
. 2
 
  
            |
| 116 | 102, 115 | rexlimddv 2619 |
1
  
    |