| Step | Hyp | Ref
| Expression |
| 1 | | eqid 2622 |
. . . . 5
         |
| 2 | 1 | subgss 17595 |
. . . 4
 SubGrp 
      |
| 3 | 2 | 3ad2ant2 1083 |
. . 3
  SubGrp 

      |
| 4 | | subgntr.h |
. . . . . 6
     |
| 5 | 4, 1 | tgptopon 21886 |
. . . . 5
 TopOn        |
| 6 | 5 | 3ad2ant1 1082 |
. . . 4
  SubGrp 

TopOn        |
| 7 | | toponuni 20719 |
. . . 4
 TopOn             |
| 8 | 6, 7 | syl 17 |
. . 3
  SubGrp 

       |
| 9 | 3, 8 | sseqtrd 3641 |
. 2
  SubGrp 

   |
| 10 | 8 | difeq1d 3727 |
. . 3
  SubGrp 

           |
| 11 | | df-ima 5127 |
. . . . . . . 8
                                 |
| 12 | 3 | adantr 481 |
. . . . . . . . . 10
   SubGrp       
 
      |
| 13 | 12 | resmptd 5452 |
. . . . . . . . 9
   SubGrp       
 
                          |
| 14 | 13 | rneqd 5353 |
. . . . . . . 8
   SubGrp       
 
                          |
| 15 | 11, 14 | syl5eq 2668 |
. . . . . . 7
   SubGrp       
 
                            |
| 16 | | simpl1 1064 |
. . . . . . . . 9
   SubGrp       
 
  |
| 17 | | eldifi 3732 |
. . . . . . . . . 10
      
      |
| 18 | 17 | adantl 482 |
. . . . . . . . 9
   SubGrp       
 
      |
| 19 | | eqid 2622 |
. . . . . . . . . 10
                           |
| 20 | | eqid 2622 |
. . . . . . . . . 10
       |
| 21 | 19, 1, 20, 4 | tgplacthmeo 21907 |
. . . . . . . . 9
                          |
| 22 | 16, 18, 21 | syl2anc 693 |
. . . . . . . 8
   SubGrp       
 
                   |
| 23 | | simpl3 1066 |
. . . . . . . 8
   SubGrp       
 
  |
| 24 | | hmeoima 21568 |
. . . . . . . 8
                                       |
| 25 | 22, 23, 24 | syl2anc 693 |
. . . . . . 7
   SubGrp       
 
                   |
| 26 | 15, 25 | eqeltrrd 2702 |
. . . . . 6
   SubGrp       
 
           |
| 27 | | tgpgrp 21882 |
. . . . . . . . 9
   |
| 28 | 16, 27 | syl 17 |
. . . . . . . 8
   SubGrp       
 
  |
| 29 | | eqid 2622 |
. . . . . . . . 9
         |
| 30 | 1, 20, 29 | grprid 17453 |
. . . . . . . 8
 
                  |
| 31 | 28, 18, 30 | syl2anc 693 |
. . . . . . 7
   SubGrp       
 
  
          |
| 32 | | simpl2 1065 |
. . . . . . . . 9
   SubGrp       
 
SubGrp    |
| 33 | 29 | subg0cl 17602 |
. . . . . . . . 9
 SubGrp 
      |
| 34 | 32, 33 | syl 17 |
. . . . . . . 8
   SubGrp       
 
      |
| 35 | | ovex 6678 |
. . . . . . . 8
            |
| 36 | | eqid 2622 |
. . . . . . . . 9
                   |
| 37 | | oveq2 6658 |
. . . . . . . . 9
                         |
| 38 | 36, 37 | elrnmpt1s 5373 |
. . . . . . . 8
                                        |
| 39 | 34, 35, 38 | sylancl 694 |
. . . . . . 7
   SubGrp       
 
  
                   |
| 40 | 31, 39 | eqeltrrd 2702 |
. . . . . 6
   SubGrp       
 
           |
| 41 | 28 | adantr 481 |
. . . . . . . . . 10
    SubGrp       
 
   |
| 42 | 18 | adantr 481 |
. . . . . . . . . 10
    SubGrp       
 
       |
| 43 | 12 | sselda 3603 |
. . . . . . . . . 10
    SubGrp       
 
       |
| 44 | 1, 20 | grpcl 17430 |
. . . . . . . . . 10
 
                      |
| 45 | 41, 42, 43, 44 | syl3anc 1326 |
. . . . . . . . 9
    SubGrp       
 
              |
| 46 | | eldifn 3733 |
. . . . . . . . . . 11
      
  |
| 47 | 46 | ad2antlr 763 |
. . . . . . . . . 10
    SubGrp       
 

  |
| 48 | | eqid 2622 |
. . . . . . . . . . . . . . 15
         |
| 49 | 48 | subgsubcl 17605 |
. . . . . . . . . . . . . 14
  SubGrp                           |
| 50 | 49 | 3com23 1271 |
. . . . . . . . . . . . 13
  SubGrp 
                         |
| 51 | 50 | 3expia 1267 |
. . . . . . . . . . . 12
  SubGrp                             |
| 52 | 32, 51 | sylan 488 |
. . . . . . . . . . 11
    SubGrp       
 
                           |
| 53 | 1, 20, 48 | grppncan 17506 |
. . . . . . . . . . . . 13
 
                          |
| 54 | 41, 42, 43, 53 | syl3anc 1326 |
. . . . . . . . . . . 12
    SubGrp       
 
                  |
| 55 | 54 | eleq1d 2686 |
. . . . . . . . . . 11
    SubGrp       
 
                
   |
| 56 | 52, 55 | sylibd 229 |
. . . . . . . . . 10
    SubGrp       
 
            |
| 57 | 47, 56 | mtod 189 |
. . . . . . . . 9
    SubGrp       
 
          |
| 58 | 45, 57 | eldifd 3585 |
. . . . . . . 8
    SubGrp       
 
            
   |
| 59 | 58, 36 | fmptd 6385 |
. . . . . . 7
   SubGrp       
 

                    |
| 60 | | frn 6053 |
. . . . . . 7
                            
        |
| 61 | 59, 60 | syl 17 |
. . . . . 6
   SubGrp       
 
                 |
| 62 | | eleq2 2690 |
. . . . . . . 8
          
            |
| 63 | | sseq1 3626 |
. . . . . . . 8
               
         
         |
| 64 | 62, 63 | anbi12d 747 |
. . . . . . 7
                
                    
          |
| 65 | 64 | rspcev 3309 |
. . . . . 6
                                      

         |
| 66 | 26, 40, 61, 65 | syl12anc 1324 |
. . . . 5
   SubGrp       
 


    
    |
| 67 | 66 | ralrimiva 2966 |
. . . 4
  SubGrp 

     
  

         |
| 68 | | topontop 20718 |
. . . . . 6
 TopOn        |
| 69 | 6, 68 | syl 17 |
. . . . 5
  SubGrp 

  |
| 70 | | eltop2 20779 |
. . . . 5
      

     
  

          |
| 71 | 69, 70 | syl 17 |
. . . 4
  SubGrp 

               

    
     |
| 72 | 67, 71 | mpbird 247 |
. . 3
  SubGrp 

        |
| 73 | 10, 72 | eqeltrrd 2702 |
. 2
  SubGrp 

     |
| 74 | | eqid 2622 |
. . . 4
   |
| 75 | 74 | iscld 20831 |
. . 3
 
   
   
     |
| 76 | 69, 75 | syl 17 |
. 2
  SubGrp 

              |
| 77 | 9, 73, 76 | mpbir2and 957 |
1
  SubGrp 

      |