| Step | Hyp | Ref
| Expression |
| 1 | | cnf2 21053 |
. . . 4
  TopOn  TopOn 
         |
| 2 | 1 | 3expia 1267 |
. . 3
  TopOn  TopOn  
  
       |
| 3 | | elpwi 4168 |
. . . . . . 7
    |
| 4 | 3 | adantl 482 |
. . . . . 6
   TopOn  TopOn  
    |
| 5 | | toponuni 20719 |
. . . . . . 7
 TopOn 
   |
| 6 | 5 | ad2antrr 762 |
. . . . . 6
   TopOn  TopOn  
     |
| 7 | 4, 6 | sseqtrd 3641 |
. . . . 5
   TopOn  TopOn  
     |
| 8 | | eqid 2622 |
. . . . . . 7
   |
| 9 | 8 | cnclsi 21076 |
. . . . . 6
                 
              |
| 10 | 9 | expcom 451 |
. . . . 5
  
                             |
| 11 | 7, 10 | syl 17 |
. . . 4
   TopOn  TopOn  
  
                             |
| 12 | 11 | ralrimdva 2969 |
. . 3
  TopOn  TopOn  
  
                             |
| 13 | 2, 12 | jcad 555 |
. 2
  TopOn  TopOn  
  
     
            
                |
| 14 | | cnvimass 5485 |
. . . . . . . . 9
    
 |
| 15 | | fdm 6051 |
. . . . . . . . . 10
       |
| 16 | 15 | ad2antlr 763 |
. . . . . . . . 9
    TopOn 
TopOn            |
| 17 | 14, 16 | syl5sseq 3653 |
. . . . . . . 8
    TopOn 
TopOn                 |
| 18 | | toponmax 20730 |
. . . . . . . . . 10
 TopOn 
  |
| 19 | 18 | ad3antrrr 766 |
. . . . . . . . 9
    TopOn 
TopOn            |
| 20 | | elpw2g 4827 |
. . . . . . . . 9
                |
| 21 | 19, 20 | syl 17 |
. . . . . . . 8
    TopOn 
TopOn                         |
| 22 | 17, 21 | mpbird 247 |
. . . . . . 7
    TopOn 
TopOn                  |
| 23 | | fveq2 6191 |
. . . . . . . . . 10
                             |
| 24 | 23 | imaeq2d 5466 |
. . . . . . . . 9
                                     |
| 25 | | imaeq2 5462 |
. . . . . . . . . 10
                     |
| 26 | 25 | fveq2d 6195 |
. . . . . . . . 9
                                     |
| 27 | 24, 26 | sseq12d 3634 |
. . . . . . . 8
                  
                            
                    |
| 28 | 27 | rspcv 3305 |
. . . . . . 7
                                                  
                    |
| 29 | 22, 28 | syl 17 |
. . . . . 6
    TopOn 
TopOn           
            
           
                
                    |
| 30 | | topontop 20718 |
. . . . . . . . . 10
 TopOn 
  |
| 31 | 30 | ad3antlr 767 |
. . . . . . . . 9
    TopOn 
TopOn            |
| 32 | | elpwi 4168 |
. . . . . . . . . . 11
 
  |
| 33 | 32 | adantl 482 |
. . . . . . . . . 10
    TopOn 
TopOn            |
| 34 | | toponuni 20719 |
. . . . . . . . . . 11
 TopOn 
   |
| 35 | 34 | ad3antlr 767 |
. . . . . . . . . 10
    TopOn 
TopOn             |
| 36 | 33, 35 | sseqtrd 3641 |
. . . . . . . . 9
    TopOn 
TopOn             |
| 37 | | ffun 6048 |
. . . . . . . . . . . 12
       |
| 38 | 37 | ad2antlr 763 |
. . . . . . . . . . 11
    TopOn 
TopOn            |
| 39 | | funimacnv 5970 |
. . . . . . . . . . 11

             |
| 40 | 38, 39 | syl 17 |
. . . . . . . . . 10
    TopOn 
TopOn                       |
| 41 | | inss1 3833 |
. . . . . . . . . 10

  |
| 42 | 40, 41 | syl6eqss 3655 |
. . . . . . . . 9
    TopOn 
TopOn                     |
| 43 | | eqid 2622 |
. . . . . . . . . 10
   |
| 44 | 43 | clsss 20858 |
. . . . . . . . 9
           
                            |
| 45 | 31, 36, 42, 44 | syl3anc 1326 |
. . . . . . . 8
    TopOn 
TopOn                                     |
| 46 | | sstr2 3610 |
. . . . . . . 8
                                                            
                
           |
| 47 | 45, 46 | syl5com 31 |
. . . . . . 7
    TopOn 
TopOn                           
                                             |
| 48 | | topontop 20718 |
. . . . . . . . . . 11
 TopOn 
  |
| 49 | 48 | ad3antrrr 766 |
. . . . . . . . . 10
    TopOn 
TopOn            |
| 50 | 5 | ad3antrrr 766 |
. . . . . . . . . . . 12
    TopOn 
TopOn             |
| 51 | 16, 50 | eqtrd 2656 |
. . . . . . . . . . 11
    TopOn 
TopOn             |
| 52 | 14, 51 | syl5sseq 3653 |
. . . . . . . . . 10
    TopOn 
TopOn                  |
| 53 | 8 | clsss3 20863 |
. . . . . . . . . 10
                         |
| 54 | 49, 52, 53 | syl2anc 693 |
. . . . . . . . 9
    TopOn 
TopOn                          |
| 55 | 54, 51 | sseqtr4d 3642 |
. . . . . . . 8
    TopOn 
TopOn                      
  |
| 56 | | funimass3 6333 |
. . . . . . . 8
              
                  
       
            
                |
| 57 | 38, 55, 56 | syl2anc 693 |
. . . . . . 7
    TopOn 
TopOn                           
       
            
                |
| 58 | 47, 57 | sylibd 229 |
. . . . . 6
    TopOn 
TopOn                           
                                              |
| 59 | 29, 58 | syld 47 |
. . . . 5
    TopOn 
TopOn           
            
           
            
                |
| 60 | 59 | ralrimdva 2969 |
. . . 4
   TopOn  TopOn  
      
            
           
                               |
| 61 | 60 | imdistanda 729 |
. . 3
  TopOn  TopOn  
                   
                                                  |
| 62 | | cncls2 21077 |
. . 3
  TopOn  TopOn  
                                        |
| 63 | 61, 62 | sylibrd 249 |
. 2
  TopOn  TopOn  
                   
                  |
| 64 | 13, 63 | impbid 202 |
1
  TopOn  TopOn  
                                      |