Step | Hyp | Ref
| Expression |
1 | | iunrab 4567 |
. . . 4
                                     |
2 | 1 | a1i 11 |
. . 3
  UPGraph
                                       |
3 | 2 | uneq1d 3766 |
. 2
  UPGraph
  
     

                    

                           |
4 | | unrab 3898 |
. . 3
                                                       |
5 | | simpl 473 |
. . . . . . . 8
     
    
      |
6 | 5 | rexlimivw 3029 |
. . . . . . 7
           
    
      |
7 | 6 | a1i 11 |
. . . . . 6
   UPGraph                           |
8 | | snidg 4206 |
. . . . . . . 8
     |
9 | 8 | ad2antlr 763 |
. . . . . . 7
   UPGraph  
    |
10 | | eleq2 2690 |
. . . . . . 7
                 |
11 | 9, 10 | syl5ibrcom 237 |
. . . . . 6
   UPGraph         
       |
12 | 7, 11 | jaod 395 |
. . . . 5
   UPGraph                                   |
13 | | upgruhgr 25997 |
. . . . . . . . 9
 UPGraph UHGraph  |
14 | | edglnl.e |
. . . . . . . . . 10
iEdg   |
15 | 14 | uhgrfun 25961 |
. . . . . . . . 9
 UHGraph
  |
16 | 13, 15 | syl 17 |
. . . . . . . 8
 UPGraph
  |
17 | 16 | adantr 481 |
. . . . . . 7
  UPGraph
   |
18 | 14 | iedgedg 25943 |
. . . . . . 7
       Edg    |
19 | 17, 18 | sylan 488 |
. . . . . 6
   UPGraph       Edg    |
20 | | edglnl.v |
. . . . . . . . . 10
Vtx   |
21 | | eqid 2622 |
. . . . . . . . . 10
Edg  Edg   |
22 | 20, 21 | upgredg 26032 |
. . . . . . . . 9
  UPGraph
    Edg  


         |
23 | 22 | ex 450 |
. . . . . . . 8
 UPGraph      Edg   
          |
24 | 23 | ad2antrr 762 |
. . . . . . 7
   UPGraph        Edg  

          |
25 | | dfsn2 4190 |
. . . . . . . . . . . . . . . . . . . . . 22
 
    |
26 | 25 | eqcomi 2631 |
. . . . . . . . . . . . . . . . . . . . 21
      |
27 | | elsni 4194 |
. . . . . . . . . . . . . . . . . . . . . 22
     |
28 | | sneq 4187 |
. . . . . . . . . . . . . . . . . . . . . . 23
  
    |
29 | 28 | eqcomd 2628 |
. . . . . . . . . . . . . . . . . . . . . 22
  
    |
30 | 27, 29 | syl 17 |
. . . . . . . . . . . . . . . . . . . . 21
         |
31 | 26, 30 | syl5eq 2668 |
. . . . . . . . . . . . . . . . . . . 20
     
    |
32 | 31, 26 | eleq2s 2719 |
. . . . . . . . . . . . . . . . . . 19
           |
33 | | preq2 4269 |
. . . . . . . . . . . . . . . . . . . . 21
         |
34 | 33 | eleq2d 2687 |
. . . . . . . . . . . . . . . . . . . 20
 
  
      |
35 | 33 | eqeq1d 2624 |
. . . . . . . . . . . . . . . . . . . 20
    
    
     |
36 | 34, 35 | imbi12d 334 |
. . . . . . . . . . . . . . . . . . 19
        
  
             |
37 | 32, 36 | mpbiri 248 |
. . . . . . . . . . . . . . . . . 18
 
           |
38 | 37 | imp 445 |
. . . . . . . . . . . . . . . . 17
 
      
    |
39 | 38 | olcd 408 |
. . . . . . . . . . . . . . . 16
 
                           |
40 | 39 | expcom 451 |
. . . . . . . . . . . . . . 15
                             |
41 | 40 | 3ad2ant3 1084 |
. . . . . . . . . . . . . 14
  

   

                        |
42 | 41 | com12 32 |
. . . . . . . . . . . . 13
   

   
 
        
      
      |
43 | | simpr3 1069 |
. . . . . . . . . . . . . . . 16
  


          |
44 | | simpl 473 |
. . . . . . . . . . . . . . . . . 18
  


       |
45 | 44 | necomd 2849 |
. . . . . . . . . . . . . . . . 17
  


       |
46 | | simpr2 1068 |
. . . . . . . . . . . . . . . . 17
  


     
   |
47 | | prproe 4434 |
. . . . . . . . . . . . . . . . 17
        
          |
48 | 43, 45, 46, 47 | syl3anc 1326 |
. . . . . . . . . . . . . . . 16
  


                |
49 | | r19.42v 3092 |
. . . . . . . . . . . . . . . 16
                               |
50 | 43, 48, 49 | sylanbrc 698 |
. . . . . . . . . . . . . . 15
  


                     |
51 | 50 | orcd 407 |
. . . . . . . . . . . . . 14
  


      
                     |
52 | 51 | ex 450 |
. . . . . . . . . . . . 13
   

   
 
        
      
      |
53 | 42, 52 | pm2.61ine 2877 |
. . . . . . . . . . . 12
  

   
 
        
      
     |
54 | 53 | 3exp 1264 |
. . . . . . . . . . 11
  

                             |
55 | 54 | ad2antlr 763 |
. . . . . . . . . 10
   UPGraph      
    
                       |
56 | 55 | imp 445 |
. . . . . . . . 9
    UPGraph

 
 
                            |
57 | | eleq2 2690 |
. . . . . . . . . 10
        
   
      |
58 | | eleq2 2690 |
. . . . . . . . . . . . 13
            
      |
59 | 57, 58 | anbi12d 747 |
. . . . . . . . . . . 12
                              |
60 | 59 | rexbidv 3052 |
. . . . . . . . . . 11
         
         
                      |
61 | | eqeq1 2626 |
. . . . . . . . . . 11
                 
     |
62 | 60, 61 | orbi12d 746 |
. . . . . . . . . 10
                                                         |
63 | 57, 62 | imbi12d 334 |
. . . . . . . . 9
                                                                    |
64 | 56, 63 | syl5ibrcom 237 |
. . . . . . . 8
    UPGraph

 
 
            
 
                          |
65 | 64 | rexlimdvva 3038 |
. . . . . . 7
   UPGraph                                              |
66 | 24, 65 | syld 47 |
. . . . . 6
   UPGraph        Edg                                   |
67 | 19, 66 | mpd 15 |
. . . . 5
   UPGraph                                   |
68 | 12, 67 | impbid 202 |
. . . 4
   UPGraph                                   |
69 | 68 | rabbidva 3188 |
. . 3
  UPGraph
                           
       |
70 | 4, 69 | syl5eq 2668 |
. 2
  UPGraph
                                     |
71 | 3, 70 | eqtrd 2656 |
1
  UPGraph
  
     

                           |