Proof of Theorem grplcanNEW
| Step | Hyp | Ref
| Expression |
| 1 | | opreq2 4890 |
. . . . . 6
           -g              -g              |
| 2 | 1 | adantl 424 |
. . . . 5
    GrpNEW
 
             -g              -g              |
| 3 | | grplcan.1NEW |
. . . . . . . . . . 11
base   |
| 4 | | grplcan.2NEW |
. . . . . . . . . . 11
+g   |
| 5 | | eqid 1884 |
. . . . . . . . . . 11
0g  0g   |
| 6 | | eqid 1884 |
. . . . . . . . . . 11
-g  -g   |
| 7 | 3, 4, 5, 6 | grplinvNEW 17129 |
. . . . . . . . . 10
  GrpNEW
   -g        0g    |
| 8 | 7 | adantlr 429 |
. . . . . . . . 9
   GrpNEW

   -g        0g    |
| 9 | 8 | opreq1d 4897 |
. . . . . . . 8
   GrpNEW

    -g            0g       |
| 10 | 3, 4, 6 | grpinvclNEW 17127 |
. . . . . . . . . . . 12
  GrpNEW
  -g       |
| 11 | 10 | adantrl 430 |
. . . . . . . . . . 11
  GrpNEW     -g       |
| 12 | | simprr 451 |
. . . . . . . . . . 11
  GrpNEW      |
| 13 | | simprl 450 |
. . . . . . . . . . 11
  GrpNEW      |
| 14 | 11, 12, 13 | 3jca 1050 |
. . . . . . . . . 10
  GrpNEW      -g        |
| 15 | 3, 4 | grpassNEW 17107 |
. . . . . . . . . 10
  GrpNEW   -g          -g             -g              |
| 16 | 14, 15 | syldan 516 |
. . . . . . . . 9
  GrpNEW       -g             -g              |
| 17 | 16 | anassrs 489 |
. . . . . . . 8
   GrpNEW

    -g             -g              |
| 18 | 3, 4, 5 | grplidNEW 17120 |
. . . . . . . . 9
  GrpNEW
  0g       |
| 19 | 18 | adantr 425 |
. . . . . . . 8
   GrpNEW

  0g       |
| 20 | 9, 17, 19 | 3eqtr3d 1934 |
. . . . . . 7
   GrpNEW

   -g              |
| 21 | 20 | adantrl 430 |
. . . . . 6
   GrpNEW


    -g              |
| 22 | 21 | adantr 425 |
. . . . 5
    GrpNEW
 
             -g              |
| 23 | 7 | adantrl 430 |
. . . . . . . . 9
  GrpNEW      -g        0g    |
| 24 | 23 | opreq1d 4897 |
. . . . . . . 8
  GrpNEW       -g            0g       |
| 25 | 10 | adantrl 430 |
. . . . . . . . . 10
  GrpNEW     -g       |
| 26 | | simprr 451 |
. . . . . . . . . 10
  GrpNEW      |
| 27 | | simprl 450 |
. . . . . . . . . 10
  GrpNEW      |
| 28 | 25, 26, 27 | 3jca 1050 |
. . . . . . . . 9
  GrpNEW      -g        |
| 29 | 3, 4 | grpassNEW 17107 |
. . . . . . . . 9
  GrpNEW   -g          -g             -g              |
| 30 | 28, 29 | syldan 516 |
. . . . . . . 8
  GrpNEW       -g             -g              |
| 31 | 3, 4, 5 | grplidNEW 17120 |
. . . . . . . . 9
  GrpNEW
  0g       |
| 32 | 31 | adantrr 431 |
. . . . . . . 8
  GrpNEW     0g       |
| 33 | 24, 30, 32 | 3eqtr3d 1934 |
. . . . . . 7
  GrpNEW      -g              |
| 34 | 33 | adantlr 429 |
. . . . . 6
   GrpNEW


    -g              |
| 35 | 34 | adantr 425 |
. . . . 5
    GrpNEW
 
             -g              |
| 36 | 2, 22, 35 | 3eqtr3d 1934 |
. . . 4
    GrpNEW
 
             |
| 37 | 36 | exp53 419 |
. . 3

GrpNEW  
                |
| 38 | 37 | 3imp2 1083 |
. 2
  GrpNEW                |
| 39 | | opreq2 4890 |
. 2
           |
| 40 | 38, 39 | impbid1 575 |
1
  GrpNEW                |