Step |
Hyp |
Ref |
Expression |
1 |
|
nnsgrp.m |
|
2 |
1
|
nnsgrpmgm |
|
3 |
|
nncn |
|
4 |
|
nncn |
|
5 |
|
nncn |
|
6 |
|
addass |
|
7 |
3 4 5 6
|
syl3an |
|
8 |
7
|
3expia |
|
9 |
8
|
ralrimiv |
|
10 |
9
|
rgen2 |
|
11 |
|
nnsscn |
|
12 |
1
|
cnfldsrngbas |
|
13 |
11 12
|
ax-mp |
|
14 |
|
nnex |
|
15 |
1
|
cnfldsrngadd |
|
16 |
14 15
|
ax-mp |
|
17 |
13 16
|
issgrp |
Could not format ( M e. Smgrp <-> ( M e. Mgm /\ A. x e. NN A. y e. NN A. z e. NN ( ( x + y ) + z ) = ( x + ( y + z ) ) ) ) : No typesetting found for |- ( M e. Smgrp <-> ( M e. Mgm /\ A. x e. NN A. y e. NN A. z e. NN ( ( x + y ) + z ) = ( x + ( y + z ) ) ) ) with typecode |- |
18 |
2 10 17
|
mpbir2an |
Could not format M e. Smgrp : No typesetting found for |- M e. Smgrp with typecode |- |