Proof of Theorem axrepnd
| Step | Hyp | Ref
| Expression |
| 1 | | axrepndlem2 4868 |
. . . 4
                              |
| 2 | | hbnae 1130 |
. . . . . . 7
      |
| 3 | | hbnae 1130 |
. . . . . . 7
      |
| 4 | 2, 3 | hban 985 |
. . . . . 6
             |
| 5 | | hbnae 1130 |
. . . . . 6
      |
| 6 | 4, 5 | hban 985 |
. . . . 5
                   |
| 7 | | hbnae 1130 |
. . . . . . . . 9
      |
| 8 | | hbnae 1130 |
. . . . . . . . 9
      |
| 9 | 7, 8 | hban 985 |
. . . . . . . 8
             |
| 10 | | hbnae 1130 |
. . . . . . . 8
      |
| 11 | 9, 10 | hban 985 |
. . . . . . 7
                   |
| 12 | | ax15 1339 |
. . . . . . . . . . . . 13
          |
| 13 | 12 | com12 11 |
. . . . . . . . . . . 12
          |
| 14 | 13 | nalequcoms 1127 |
. . . . . . . . . . 11
          |
| 15 | 14 | imp 350 |
. . . . . . . . . 10
          |
| 16 | 15 | adantlr 393 |
. . . . . . . . 9
         
   |
| 17 | | ax-4 951 |
. . . . . . . . 9
    |
| 18 | 16, 17 | impbid1 515 |
. . . . . . . 8
             |
| 19 | | ax15 1339 |
. . . . . . . . . . . . . 14
          |
| 20 | 19 | imp 350 |
. . . . . . . . . . . . 13
     
    |
| 21 | | alequcom 1125 |
. . . . . . . . . . . . . 14
     |
| 22 | 21 | con3i 98 |
. . . . . . . . . . . . 13
     |
| 23 | | alequcom 1125 |
. . . . . . . . . . . . . 14
     |
| 24 | 23 | con3i 98 |
. . . . . . . . . . . . 13
     |
| 25 | 20, 22, 24 | syl2an 454 |
. . . . . . . . . . . 12
          |
| 26 | 25 | adantll 392 |
. . . . . . . . . . 11
         
   |
| 27 | | ax-4 951 |
. . . . . . . . . . 11
    |
| 28 | 26, 27 | impbid1 515 |
. . . . . . . . . 10
             |
| 29 | 28 | anbi1d 615 |
. . . . . . . . 9
                     |
| 30 | 6, 29 | exbid 1081 |
. . . . . . . 8
                         |
| 31 | 18, 30 | bibi12d 627 |
. . . . . . 7
                              |
| 32 | 11, 31 | albid 1080 |
. . . . . 6
                      
           |
| 33 | 32 | imbi2d 610 |
. . . . 5
                                     
            |
| 34 | 6, 33 | exbid 1081 |
. . . 4
                                    
                 |
| 35 | 1, 34 | mpbid 195 |
. . 3
                                |
| 36 | 35 | exp31 376 |
. 2
                                |
| 37 | | hbae 1128 |
. . . . 5
       |
| 38 | | pm5.21 674 |
. . . . . 6
  
                    |
| 39 | | nd2 4862 |
. . . . . . 7
     |
| 40 | 39 | alequcoms 1126 |
. . . . . 6
     |
| 41 | | hbae 1128 |
. . . . . . 7
       |
| 42 | | nd3 4863 |
. . . . . . . 8
     |
| 43 | 42 | intnanrd 691 |
. . . . . . 7
         |
| 44 | 41, 43 | nexd 1078 |
. . . . . 6
     
     |
| 45 | 38, 40, 44 | sylanc 471 |
. . . . 5
              |
| 46 | 37, 45 | 19.21ai 974 |
. . . 4
                |
| 47 | 46 | a1d 12 |
. . 3
            
           |
| 48 | | 19.8a 1005 |
. . 3
                                             |
| 49 | 47, 48 | syl 10 |
. 2
                          |
| 50 | | hbae 1128 |
. . . . 5
       |
| 51 | | nd4 4864 |
. . . . . 6
     |
| 52 | | hbae 1128 |
. . . . . . 7
       |
| 53 | | nd1 4861 |
. . . . . . . . 9
     |
| 54 | 53 | alequcoms 1126 |
. . . . . . . 8
     |
| 55 | 54 | intnanrd 691 |
. . . . . . 7
         |
| 56 | 52, 55 | nexd 1078 |
. . . . . 6
     
     |
| 57 | 38, 51, 56 | sylanc 471 |
. . . . 5
              |
| 58 | 50, 57 | 19.21ai 974 |
. . . 4
   |