| Step | Hyp | Ref
 | Expression | 
| 1 |   | simpl2 1003 | 
. . . . 5
                        
                         
                     
       | 
| 2 |   | toptopon2 14255 | 
. . . . 5
          
     TopOn      | 
| 3 | 1, 2 | sylib 122 | 
. . . 4
                        
                         
                     
     TopOn      | 
| 4 |   | simpl3 1004 | 
. . . . 5
                        
                         
                     
       | 
| 5 |   | toptopon2 14255 | 
. . . . 5
          
     TopOn      | 
| 6 | 4, 5 | sylib 122 | 
. . . 4
                        
                         
                     
     TopOn      | 
| 7 |   | simprr 531 | 
. . . 4
                        
                         
                     
                     | 
| 8 |   | cnpf2 14443 | 
. . . 4
         TopOn            TopOn                                       | 
| 9 | 3, 6, 7, 8 | syl3anc 1249 | 
. . 3
                        
                         
                     
         | 
| 10 |   | simpl1 1002 | 
. . . . 5
                        
                         
                     
       | 
| 11 |   | toptopon2 14255 | 
. . . . 5
          
     TopOn      | 
| 12 | 10, 11 | sylib 122 | 
. . . 4
                        
                         
                     
     TopOn      | 
| 13 |   | simprl 529 | 
. . . 4
                        
                         
                     
                 | 
| 14 |   | cnpf2 14443 | 
. . . 4
         TopOn            TopOn                         
         | 
| 15 | 12, 3, 13, 14 | syl3anc 1249 | 
. . 3
                        
                         
                     
         | 
| 16 |   | fco 5423 | 
. . 3
           
                            | 
| 17 | 9, 15, 16 | syl2anc 411 | 
. 2
                        
                         
                     
               | 
| 18 | 3 | adantr 276 | 
. . . . . 6
             
                                                                                            
 TopOn      | 
| 19 | 6 | adantr 276 | 
. . . . . 6
             
                                                                                            
 TopOn      | 
| 20 |   | cnprcl2k 14442 | 
. . . . . . . . 9
         TopOn                                 
        | 
| 21 | 12, 1, 13, 20 | syl3anc 1249 | 
. . . . . . . 8
                        
                         
                     
        | 
| 22 | 15, 21 | ffvelcdmd 5698 | 
. . . . . . 7
                        
                         
                     
            | 
| 23 | 22 | adantr 276 | 
. . . . . 6
             
                                                                                                     | 
| 24 | 7 | adantr 276 | 
. . . . . 6
             
                                                                                            
                 | 
| 25 |   | simprl 529 | 
. . . . . 6
             
                                                                                                | 
| 26 |   | fvco3 5632 | 
. . . . . . . . 9
           
                                     | 
| 27 | 15, 21, 26 | syl2anc 411 | 
. . . . . . . 8
                        
                         
                     
     
                   | 
| 28 | 27 | adantr 276 | 
. . . . . . 7
             
                                                                                                                  | 
| 29 |   | simprr 531 | 
. . . . . . 7
             
                                                                                                          | 
| 30 | 28, 29 | eqeltrrd 2274 | 
. . . . . 6
             
                                                                                                        | 
| 31 |   | icnpimaex 14447 | 
. . . . . 6
          TopOn          
 TopOn                       
                       
                                                      | 
| 32 | 18, 19, 23, 24, 25, 30, 31 | syl33anc 1264 | 
. . . . 5
             
                                                                                           
                             | 
| 33 | 12 | ad2antrr 488 | 
. . . . . . 7
                                    
                                                                                                       
     TopOn      | 
| 34 | 3 | ad2antrr 488 | 
. . . . . . 7
                                    
                                                                                                       
     TopOn      | 
| 35 | 21 | ad2antrr 488 | 
. . . . . . 7
                                    
                                                                                                       
        | 
| 36 |   | simplll 533 | 
. . . . . . . 8
                                                                                                                    
             | 
| 37 | 36 | adantlll 480 | 
. . . . . . 7
                                    
                                                                                                       
                 | 
| 38 |   | simprl 529 | 
. . . . . . 7
                                    
                                                                                                       
       | 
| 39 |   | simprrl 539 | 
. . . . . . 7
                                    
                                                                                                       
           | 
| 40 |   | icnpimaex 14447 | 
. . . . . . 7
          TopOn          
 TopOn                   
                 
                   
      
      
              | 
| 41 | 33, 34, 35, 37, 38, 39, 40 | syl33anc 1264 | 
. . . . . 6
                                    
                                                                                                       
      
      
              | 
| 42 |   | imaco 5175 | 
. . . . . . . . . . 11
                          | 
| 43 |   | imass2 5045 | 
. . . . . . . . . . 11
                                  | 
| 44 | 42, 43 | eqsstrid 3229 | 
. . . . . . . . . 10
                                    | 
| 45 |   | simprrr 540 | 
. . . . . . . . . 10
                                                                                                                        
   | 
| 46 |   | sstr2 3190 | 
. . . . . . . . . 10
                                 
                      | 
| 47 | 44, 45, 46 | syl2imc 39 | 
. . . . . . . . 9
                                                                                                                                           
    | 
| 48 | 47 | adantlll 480 | 
. . . . . . . 8
                                    
                                                                                                       
                               | 
| 49 | 48 | anim2d 337 | 
. . . . . . 7
                                    
                                                                                                       
     
                                       
     | 
| 50 | 49 | reximdv 2598 | 
. . . . . 6
                                    
                                                                                                       
     
      
                   
      
                   
     | 
| 51 | 41, 50 | mpd 13 | 
. . . . 5
                                    
                                                                                                       
      
      
                    | 
| 52 | 32, 51 | rexlimddv 2619 | 
. . . 4
             
                                                                                           
      
                   
    | 
| 53 | 52 | expr 375 | 
. . 3
             
                                                                                          
      
                   
     | 
| 54 | 53 | ralrimiva 2570 | 
. 2
                        
                         
                     
      
                
        
      
                     | 
| 55 |   | iscnp 14435 | 
. . 3
         TopOn            TopOn                                         
     
                                              
                   
       | 
| 56 | 12, 6, 21, 55 | syl3anc 1249 | 
. 2
                        
                         
                     
     
                                        
                       
      
                   
       | 
| 57 | 17, 54, 56 | mpbir2and 946 | 
1
                        
                         
                     
                       |