Theorem bj-ablssgrp 33138

Description: Abelian groups are groups. (Contributed by BJ, 9-Jun-2019.) (Proof modification is discouraged.)

Assertion

Ref	Expression
bj-ablssgrp	|- Abel C_ Grp

Proof of Theorem bj-ablssgrp

Step	Hyp	Ref	Expression
1		df-abl 18196	. 2 |- Abel = ( Grp i^i CMnd )
2		inss1 3833	. 2 |- ( Grp i^i CMnd ) C_ Grp
3	1, 2	eqsstri 3635	1 |- Abel C_ Grp

Syntax hints:   i^i cin 3573   C_ wss 3574   Grpcgrp 17422  CMndccmn 18193   Abelcabl 18194

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-v 3202  df-in 3581  df-ss 3588  df-abl 18196

This theorem is referenced by:  bj-ablssgrpel  33139