| Step | Hyp | Ref
| Expression |
| 1 | | df-ima 5127 |
. 2
       |
| 2 | | fveq2 6191 |
. . . . . . 7
           |
| 3 | | neleq2 2903 |
. . . . . . 7
             
       |
| 4 | 2, 3 | syl 17 |
. . . . . 6
     
       |
| 5 | | upgrres.f |
. . . . . 6
       |
| 6 | 4, 5 | elrab2 3366 |
. . . . 5

        |
| 7 | | upgrres.v |
. . . . . . . 8
Vtx   |
| 8 | | upgrres.e |
. . . . . . . 8
iEdg   |
| 9 | 7, 8 | upgrf 25981 |
. . . . . . 7
 UPGraph                  |
| 10 | | ffvelrn 6357 |
. . . . . . . . . 10
      
 
        
                 |
| 11 | | fveq2 6191 |
. . . . . . . . . . . . 13
                   |
| 12 | 11 | breq1d 4663 |
. . . . . . . . . . . 12
         
       
   |
| 13 | 12 | elrab 3363 |
. . . . . . . . . . 11
              
                      |
| 14 | | eldifsn 4317 |
. . . . . . . . . . . . . . . . . 18
         
             |
| 15 | | simpl 473 |
. . . . . . . . . . . . . . . . . . . . 21
      
    
       |
| 16 | | elpwi 4168 |
. . . . . . . . . . . . . . . . . . . . . 22
         
  |
| 17 | 16 | adantr 481 |
. . . . . . . . . . . . . . . . . . . . 21
      
    
      |
| 18 | | simpr 477 |
. . . . . . . . . . . . . . . . . . . . 21
      
    
      |
| 19 | | elpwdifsn 4319 |
. . . . . . . . . . . . . . . . . . . . 21
          
                |
| 20 | 15, 17, 18, 19 | syl3anc 1326 |
. . . . . . . . . . . . . . . . . . . 20
      
    
     
     |
| 21 | 20 | ex 450 |
. . . . . . . . . . . . . . . . . . 19
                       |
| 22 | 21 | adantr 481 |
. . . . . . . . . . . . . . . . . 18
                             |
| 23 | 14, 22 | sylbi 207 |
. . . . . . . . . . . . . . . . 17
                           |
| 24 | 23 | adantr 481 |
. . . . . . . . . . . . . . . 16
                   
    
     
      |
| 25 | 24 | imp 445 |
. . . . . . . . . . . . . . 15
                                     |
| 26 | | eldifsni 4320 |
. . . . . . . . . . . . . . . . 17
                |
| 27 | 26 | adantr 481 |
. . . . . . . . . . . . . . . 16
                   
      |
| 28 | 27 | adantr 481 |
. . . . . . . . . . . . . . 15
                                |
| 29 | | eldifsn 4317 |
. . . . . . . . . . . . . . 15
          
         
          |
| 30 | 25, 28, 29 | sylanbrc 698 |
. . . . . . . . . . . . . 14
                                   
     |
| 31 | | simpr 477 |
. . . . . . . . . . . . . . 15
                   
       
  |
| 32 | 31 | adantr 481 |
. . . . . . . . . . . . . 14
                                    |
| 33 | 12, 30, 32 | elrabd 3365 |
. . . . . . . . . . . . 13
                                           
   |
| 34 | 33 | ex 450 |
. . . . . . . . . . . 12
                   
    
                      |
| 35 | 34 | a1d 25 |
. . . . . . . . . . 11
                   

                      
     |
| 36 | 13, 35 | sylbi 207 |
. . . . . . . . . 10
              
                 
      
     |
| 37 | 10, 36 | syl 17 |
. . . . . . . . 9
      
 
        

                      
     |
| 38 | 37 | ex 450 |
. . . . . . . 8
              
  
    
                        |
| 39 | 38 | com23 86 |
. . . . . . 7
              
                                |
| 40 | 9, 39 | syl 17 |
. . . . . 6
 UPGraph 
                       
      |
| 41 | 40 | imp4b 613 |
. . . . 5
  UPGraph
       
                      |
| 42 | 6, 41 | syl5bi 232 |
. . . 4
  UPGraph
            
      
    |
| 43 | 42 | ralrimiv 2965 |
. . 3
  UPGraph
 
                     |
| 44 | | upgruhgr 25997 |
. . . . . 6
 UPGraph UHGraph  |
| 45 | 8 | uhgrfun 25961 |
. . . . . 6
 UHGraph
  |
| 46 | 44, 45 | syl 17 |
. . . . 5
 UPGraph
  |
| 47 | 46 | adantr 481 |
. . . 4
  UPGraph
   |
| 48 | | ssrab2 3687 |
. . . . 5
       |
| 49 | 5, 48 | eqsstri 3635 |
. . . 4
 |
| 50 | | funimass4 6247 |
. . . 4
              
      
            
      
    |
| 51 | 47, 49, 50 | sylancl 694 |
. . 3
  UPGraph
     
      
      
            
      
    |
| 52 | 43, 51 | mpbird 247 |
. 2
  UPGraph
                      |
| 53 | 1, 52 | syl5eqssr 3650 |
1
  UPGraph
 
       
      
   |