Theorem cmnmnd 14081

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

Assertion

Ref	Expression
cmnmnd	|- ( G e. CMnd -> G e. Mnd )

Proof of Theorem cmnmnd

Dummy variables x y are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2238	. . 3 |- ( Base ` G ) = ( Base ` G )
2		eqid 2238	. . 3 |- ( +g ` G ) = ( +g ` G )
3	1, 2	iscmn 14073	. 2 |- ( G e. CMnd <-> ( G e. Mnd /\ A. x e. ( Base ` G ) A. y e. ( Base ` G ) ( x ( +g ` G ) y ) = ( y ( +g ` G ) x ) ) )
4	3	simplbi 274	1 |- ( G e. CMnd -> G e. Mnd )

Syntax hints:   -> wi 4   = wceq 1402   e. wcel 2209   A.wral 2528   ` cfv 5372  (class class class)co 6075   Basecbs 13330   +g cplusg 13408   Mndcmnd 13706  CMndccmn 14064

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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220

This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-un 3224  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-br 4126  df-iota 5332  df-fv 5380  df-ov 6078  df-cmn 14066

This theorem is referenced by:  cmn32  14084  cmn4  14085  cmn12  14086  cmnmndd  14088  rinvmod  14090  ghmcmn  14108  gsumzfi  14135  srgmnd  14245