| Step | Hyp | Ref
| Expression |
| 1 | | eqid 2231 |
. . . 4
Vtx  Vtx   |
| 2 | | eqid 2231 |
. . . 4
Vtx  Vtx   |
| 3 | | eqid 2231 |
. . . 4
iEdg  iEdg   |
| 4 | | eqid 2231 |
. . . 4
iEdg  iEdg   |
| 5 | | eqid 2231 |
. . . 4
Edg  Edg   |
| 6 | 1, 2, 3, 4, 5 | subgrprop2 16110 |
. . 3
 SubGraph  Vtx  Vtx  iEdg  iEdg  Edg   Vtx     |
| 7 | | upgruhgr 15961 |
. . . . . . . . . . 11
 UPGraph UHGraph |
| 8 | | subgruhgrfun 16118 |
. . . . . . . . . . 11
  UHGraph
SubGraph 
iEdg    |
| 9 | 7, 8 | sylan 283 |
. . . . . . . . . 10
  UPGraph
SubGraph 
iEdg    |
| 10 | 9 | ancoms 268 |
. . . . . . . . 9
  SubGraph
UPGraph
iEdg    |
| 11 | 10 | funfnd 5357 |
. . . . . . . 8
  SubGraph
UPGraph iEdg  iEdg    |
| 12 | 11 | adantl 277 |
. . . . . . 7
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph iEdg  iEdg    |
| 13 | | breq1 4091 |
. . . . . . . . . . 11
  iEdg    
  iEdg    
   |
| 14 | | breq1 4091 |
. . . . . . . . . . 11
  iEdg    
  iEdg    
   |
| 15 | 13, 14 | orbi12d 800 |
. . . . . . . . . 10
  iEdg    
 

  iEdg      iEdg         |
| 16 | 7 | anim2i 342 |
. . . . . . . . . . . . . . 15
  SubGraph
UPGraph  SubGraph
UHGraph  |
| 17 | 16 | adantl 277 |
. . . . . . . . . . . . . 14
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph  SubGraph UHGraph  |
| 18 | 17 | ancomd 267 |
. . . . . . . . . . . . 13
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph 
UHGraph SubGraph    |
| 19 | 18 | anim1i 340 |
. . . . . . . . . . . 12
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg     UHGraph SubGraph

iEdg     |
| 20 | 19 | simplld 528 |
. . . . . . . . . . 11
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg   UHGraph |
| 21 | | simpl 109 |
. . . . . . . . . . . . 13
  SubGraph
UPGraph
SubGraph   |
| 22 | 21 | adantl 277 |
. . . . . . . . . . . 12
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph SubGraph   |
| 23 | 22 | adantr 276 |
. . . . . . . . . . 11
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg  
SubGraph   |
| 24 | | simpr 110 |
. . . . . . . . . . 11
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg   iEdg    |
| 25 | 1, 3, 20, 23, 24 | subgruhgredgdm 16120 |
. . . . . . . . . 10
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg    iEdg       Vtx  
   |
| 26 | | subgreldmiedg 16119 |
. . . . . . . . . . . . . . 15
  SubGraph
iEdg   iEdg    |
| 27 | 26 | ex 115 |
. . . . . . . . . . . . . 14
 SubGraph  iEdg  iEdg     |
| 28 | 27 | ad2antrl 490 |
. . . . . . . . . . . . 13
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph  iEdg  iEdg     |
| 29 | | simpr 110 |
. . . . . . . . . . . . . . . 16
  iEdg  UPGraph
UPGraph |
| 30 | 4 | uhgrfun 15927 |
. . . . . . . . . . . . . . . . . . 19
 UHGraph
iEdg    |
| 31 | 7, 30 | syl 14 |
. . . . . . . . . . . . . . . . . 18
 UPGraph
iEdg    |
| 32 | 31 | funfnd 5357 |
. . . . . . . . . . . . . . . . 17
 UPGraph iEdg  iEdg    |
| 33 | 32 | adantl 277 |
. . . . . . . . . . . . . . . 16
  iEdg  UPGraph
iEdg  iEdg    |
| 34 | | simpl 109 |
. . . . . . . . . . . . . . . 16
  iEdg  UPGraph
iEdg    |
| 35 | 2, 4 | upgr1or2 15951 |
. . . . . . . . . . . . . . . 16
  UPGraph
iEdg  iEdg 
iEdg     iEdg    
 iEdg        |
| 36 | 29, 33, 34, 35 | syl3anc 1273 |
. . . . . . . . . . . . . . 15
  iEdg  UPGraph
  iEdg      iEdg        |
| 37 | 36 | expcom 116 |
. . . . . . . . . . . . . 14
 UPGraph  iEdg    iEdg    
 iEdg         |
| 38 | 37 | ad2antll 491 |
. . . . . . . . . . . . 13
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph  iEdg    iEdg      iEdg    
    |
| 39 | 28, 38 | syld 45 |
. . . . . . . . . . . 12
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph  iEdg    iEdg      iEdg    
    |
| 40 | 39 | imp 124 |
. . . . . . . . . . 11
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg     iEdg    
 iEdg        |
| 41 | 31 | ad2antll 491 |
. . . . . . . . . . . . . . . 16
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph iEdg    |
| 42 | 41 | adantr 276 |
. . . . . . . . . . . . . . 15
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg  
iEdg    |
| 43 | | simpll2 1063 |
. . . . . . . . . . . . . . 15
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg   iEdg 
iEdg    |
| 44 | | funssfv 5665 |
. . . . . . . . . . . . . . 15
  iEdg 
iEdg 
iEdg 
iEdg  
 iEdg      iEdg       |
| 45 | 42, 43, 24, 44 | syl3anc 1273 |
. . . . . . . . . . . . . 14
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg    iEdg      iEdg       |
| 46 | 45 | eqcomd 2237 |
. . . . . . . . . . . . 13
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg    iEdg      iEdg       |
| 47 | 46 | breq1d 4098 |
. . . . . . . . . . . 12
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg     iEdg    
 iEdg    
   |
| 48 | 46 | breq1d 4098 |
. . . . . . . . . . . 12
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg     iEdg    
 iEdg    
   |
| 49 | 47, 48 | orbi12d 800 |
. . . . . . . . . . 11
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg      iEdg      iEdg     
  iEdg      iEdg         |
| 50 | 40, 49 | mpbird 167 |
. . . . . . . . . 10
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg     iEdg    
 iEdg        |
| 51 | 15, 25, 50 | elrabd 2964 |
. . . . . . . . 9
    Vtx  Vtx  iEdg  iEdg  Edg   Vtx    SubGraph
UPGraph
iEdg    iEdg        Vtx         |
| 52 | 51 | ralrimiva 2605 |
. . . . . . . 8
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph  iEdg    iEdg        Vtx         |
| 53 | | fnfvrnss 5807 |
. . . . . . . 8
  iEdg  iEdg 
 iEdg    iEdg        Vtx        iEdg     Vtx  

     |
| 54 | 12, 52, 53 | syl2anc 411 |
. . . . . . 7
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph iEdg     Vtx  

     |
| 55 | | df-f 5330 |
. . . . . . 7
 iEdg    iEdg       Vtx  

  
 iEdg  iEdg  iEdg     Vtx  

      |
| 56 | 12, 54, 55 | sylanbrc 417 |
. . . . . 6
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph iEdg    iEdg       Vtx  

     |
| 57 | | sspw1or2 7402 |
. . . . . . 7
   Vtx      
  Vtx      |
| 58 | | feq3 5467 |
. . . . . . 7
    Vtx  

     Vtx      iEdg    iEdg       Vtx  

  
iEdg    iEdg      Vtx        |
| 59 | 57, 58 | ax-mp 5 |
. . . . . 6
 iEdg    iEdg       Vtx  

  
iEdg    iEdg      Vtx       |
| 60 | 56, 59 | sylib 122 |
. . . . 5
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph iEdg    iEdg      Vtx       |
| 61 | | subgrv 16106 |
. . . . . . 7
 SubGraph 
   |
| 62 | 1, 3 | isupgren 15945 |
. . . . . . . 8
 
UPGraph iEdg    iEdg      Vtx  
     |
| 63 | 62 | adantr 276 |
. . . . . . 7
 
  UPGraph
iEdg    iEdg      Vtx        |
| 64 | 61, 63 | syl 14 |
. . . . . 6
 SubGraph  UPGraph iEdg    iEdg      Vtx        |
| 65 | 64 | ad2antrl 490 |
. . . . 5
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph 
UPGraph iEdg    iEdg      Vtx  
     |
| 66 | 60, 65 | mpbird 167 |
. . . 4
   Vtx 
Vtx 
iEdg 
iEdg 
Edg 
 Vtx   
SubGraph UPGraph UPGraph |
| 67 | 66 | ex 115 |
. . 3
  Vtx  Vtx  iEdg  iEdg  Edg   Vtx     SubGraph
UPGraph UPGraph  |
| 68 | 6, 67 | syl 14 |
. 2
 SubGraph   SubGraph UPGraph
UPGraph  |
| 69 | 68 | anabsi8 584 |
1
  UPGraph
SubGraph  UPGraph |