Theorem ablcmn 12891

Description: An Abelian group is a commutative monoid. (Contributed by Mario Carneiro, 6-Jan-2015.)

Assertion

Ref	Expression
ablcmn	|- ( G e. Abel -> G e. CMnd )

Proof of Theorem ablcmn

Step	Hyp	Ref	Expression
1		isabl 12888	. 2 |- ( G e. Abel <-> ( G e. Grp /\ G e. CMnd ) )
2	1	simprbi 275	1 |- ( G e. Abel -> G e. CMnd )

Syntax hints:   -> wi 4   e. wcel 2146   Grpcgrp 12738  CMndccmn 12884   Abelcabl 12885

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 709  ax-5 1445  ax-7 1446  ax-gen 1447  ax-ie1 1491  ax-ie2 1492  ax-8 1502  ax-10 1503  ax-11 1504  ax-i12 1505  ax-bndl 1507  ax-4 1508  ax-17 1524  ax-i9 1528  ax-ial 1532  ax-i5r 1533  ax-ext 2157

This theorem depends on definitions:  df-bi 117  df-tru 1356  df-nf 1459  df-sb 1761  df-clab 2162  df-cleq 2168  df-clel 2171  df-nfc 2306  df-v 2737  df-in 3133  df-abl 12887

This theorem is referenced by:  ablcom  12902  abl32  12906  ablsub4  12912