Proof of Theorem grpidinvlem3NEW
| Step | Hyp | Ref
| Expression |
| 1 | | opreq2 4890 |
. . . . . . . 8
           |
| 2 | 1 | eqeq1d 1892 |
. . . . . . 7
             |
| 3 | 2 | rexbidv 2124 |
. . . . . 6
               |
| 4 | 3 | rcla4cva 2379 |
. . . . 5
                |
| 5 | | grpidinvlem3.3NEW |
. . . . . 6
         |
| 6 | | opreq1 4889 |
. . . . . . . . 9
           |
| 7 | 6 | eqeq1d 1892 |
. . . . . . . 8
             |
| 8 | 7 | cbvrexv 2281 |
. . . . . . 7
             |
| 9 | 8 | ralbii 2127 |
. . . . . 6
       

      |
| 10 | 5, 9 | bitri 190 |
. . . . 5
         |
| 11 | 4, 10 | sylanb 498 |
. . . 4
   
      |
| 12 | 11 | adantll 428 |
. . 3
     
      |
| 13 | 12 | adantll 428 |
. 2
    GrpNEW
 
   
      |
| 14 | | grplem1.1NEW |
. . . . . . . . . . . 12
base   |
| 15 | | grplem1.2NEW |
. . . . . . . . . . . 12
+g   |
| 16 | 14, 15 | grpclNEW 17106 |
. . . . . . . . . . 11
  GrpNEW
       |
| 17 | 16 | 3expa 1067 |
. . . . . . . . . 10
   GrpNEW

       |
| 18 | 17 | adantllr 433 |
. . . . . . . . 9
    GrpNEW
         |
| 19 | 18 | adantllr 433 |
. . . . . . . 8
     GrpNEW  
          |
| 20 | | grpidinvlem3.2NEW |
. . . . . . . . . . 11
        |
| 21 | 20 | biimpi 168 |
. . . . . . . . . 10


      |
| 22 | 21 | ad2antrl 442 |
. . . . . . . . 9
   GrpNEW

          |
| 23 | 22 | ad2antrr 440 |
. . . . . . . 8
     GrpNEW  
    
      |
| 24 | | opreq2 4890 |
. . . . . . . . . 10
                   |
| 25 | | id 73 |
. . . . . . . . . 10
           |
| 26 | 24, 25 | eqeq12d 1899 |
. . . . . . . . 9
                         |
| 27 | 26 | rcla4va 2378 |
. . . . . . . 8
                          |
| 28 | 19, 23, 27 | syl11anc 524 |
. . . . . . 7
     GrpNEW  
                  |
| 29 | 28 | adantr 425 |
. . . . . 6
      GrpNEW
                         |
| 30 | | pm3.22 486 |
. . . . . . . . . . . 12
    GrpNEW  GrpNEW
     |
| 31 | 30 | ancom31s 549 |
. . . . . . . . . . 11
   GrpNEW

 
GrpNEW      |
| 32 | 31 | adantllr 433 |
. . . . . . . . . 10
    GrpNEW
   
GrpNEW      |
| 33 | 32 | adantllr 433 |
. . . . . . . . 9
     GrpNEW  
    
GrpNEW      |
| 34 | 33 | adantr 425 |
. . . . . . . 8
      GrpNEW
           
GrpNEW      |
| 35 | | opreq2 4890 |
. . . . . . . . . . . . . . 15
           |
| 36 | | id 73 |
. . . . . . . . . . . . . . 15
   |
| 37 | 35, 36 | eqeq12d 1899 |
. . . . . . . . . . . . . 14
             |
| 38 | 37 | rcla4cva 2379 |
. . . . . . . . . . . . 13
              |
| 39 | 38, 20 | sylanb 498 |
. . . . . . . . . . . 12
         |
| 40 | 39 | adantlr 429 |
. . . . . . . . . . 11
           |
| 41 | 40 | adantlr 429 |
. . . . . . . . . 10
             |
| 42 | 41 | adantlll 432 |
. . . . . . . . 9
     GrpNEW  
          |
| 43 | 42 | anim1i 361 |
. . . . . . . 8
      GrpNEW
                       |
| 44 | 14, 15 | grpidinvlem2NEW 17110 |
. . . . . . . 8
   GrpNEW                                 |
| 45 | 34, 43, 44 | syl11anc 524 |
. . . . . . 7
      GrpNEW
                             |
| 46 | 16 | 3expb 1068 |
. . . . . . . . . . . . . . 15
  GrpNEW          |
| 47 | 46 | ad2ant2rl 447 |
. . . . . . . . . . . . . 14
   GrpNEW

           |
| 48 | 14, 15 | grpidinvlem1NEW 17109 |
. . . . . . . . . . . . . . . . . 18
   GrpNEW                                             |
| 49 | | anass 487 |
. . . . . . . . . . . . . . . . . . . . . . . 24
   GrpNEW

      GrpNEW

        |
| 50 | 49 | biimpi 168 |
. . . . . . . . . . . . . . . . . . . . . . 23
   GrpNEW

     
GrpNEW          |
| 51 | 50 | an1rs 547 |
. . . . . . . . . . . . . . . . . . . . . 22
   GrpNEW       
GrpNEW          |
| 52 | 51 | ex 402 |
. . . . . . . . . . . . . . . . . . . . 21
  GrpNEW        GrpNEW

         |
| 53 | 46, 52 | syldan 516 |
. . . . . . . . . . . . . . . . . . . 20
  GrpNEW    
 GrpNEW           |
| 54 | 53 | ad2ant2rl 447 |
. . . . . . . . . . . . . . . . . . 19
   GrpNEW

       GrpNEW

         |
| 55 | 54 | imp 377 |
. . . . . . . . . . . . . . . . . 18
    GrpNEW
 

     GrpNEW

        |
| 56 | 48, 55 | sylan 497 |
. . . . . . . . . . . . . . . . 17
     GrpNEW  

                                         |
| 57 | 56 | exp43 415 |
. . . . . . . . . . . . . . . 16
   GrpNEW

                                             |
| 58 | 57 | r19.23adv 2215 |
. . . . . . . . . . . . . . 15
   GrpNEW

      
                                     |
| 59 | | opreq2 4890 |
. . . . . . . . . . . . . . . . . . 19
                   |
| 60 | 59 | eqeq1d 1892 |
. . . . . . . . . . . . . . . . . 18
                     |
| 61 | 60 | rexbidv 2124 |
. . . . . . . . . . . . . . . . 17
                       |
| 62 | 61 | rcla4va 2378 |
. . . . . . . . . . . . . . . 16
             
          |
| 63 | | opreq1 4889 |
. . . . . . . . . . . . . . . . . . . 20
           |
| 64 | 63 | eqeq1d 1892 |
. . . . . . . . . . . . . . . . . . 19
             |
| 65 | 64 | cbvrexv 2281 |
. . . . . . . . . . . . . . . . . 18
      
      |
| 66 | 65 | ralbii 2127 |
. . . . . . . . . . . . . . . . 17
       

      |
| 67 | 5, 66 | bitri 190 |
. . . . . . . . . . . . . . . 16
         |
| 68 | 62, 67 | sylan2b 501 |
. . . . . . . . . . . . . . 15
                  |
| 69 | 58, 68 | syl5 20 |
. . . . . . . . . . . . . 14
   GrpNEW

           
                             |
| 70 | 47, 69 | mpand 765 |
. . . . . . . . . . . . 13
   GrpNEW

                                   |
| 71 | 70 | exp32 408 |
. . . . . . . . . . . 12
  GrpNEW
                                     |
| 72 | 71 | com34 40 |
. . . . . . . . . . 11
  GrpNEW
  
 
                                |
| 73 | 72 | imp32 390 |
. . . . . . . . . 10
   GrpNEW

                                   |
| 74 | 73 | exp3a 405 |
. . . . . . . . 9
   GrpNEW

                                   |
| 75 | 74 | imp31 389 |
. . . . . . . 8
     GrpNEW  
                                |
| 76 | 75 | adantr 425 |
. . . . . . 7
      GrpNEW
                                       |
| 77 | 45, 76 | mpd 29 |
. . . . . 6
      GrpNEW
                     |
| 78 | 29, 77 | eqtr3d 1927 |
. . . . 5
      GrpNEW
                 |
| 79 | 78 | ex 402 |
. . . 4
     GrpNEW  
                |
| 80 | 79 | ancld 322 |
. . 3
     GrpNEW  
                      |
| 81 | 80 | reximdva 2203 |
. 2
    GrpNEW
 
                       |
| 82 | 13, 81 | mpd 29 |
1
    GrpNEW
 
   
            |