Theorem sgrpssmgm

Description: The class of all semigroups is a proper subclass of the class of all magmas. (Contributed by AV, 29-Jan-2020)

	Ref	Expression
Assertion	sgrpssmgm	Could not format assertion : No typesetting found for |- Smgrp C. Mgm with typecode |-

Proof

Step	Hyp	Ref	Expression
1		sgrpmgm	Could not format ( x e. Smgrp -> x e. Mgm ) : No typesetting found for |- ( x e. Smgrp -> x e. Mgm ) with typecode |-
2	1	ssriv	Could not format Smgrp C_ Mgm : No typesetting found for |- Smgrp C_ Mgm with typecode |-
3		mgmnsgrpex	Could not format E. x e. Mgm x e/ Smgrp : No typesetting found for |- E. x e. Mgm x e/ Smgrp with typecode |-
4		ssexnelpss	Could not format ( ( Smgrp C_ Mgm /\ E. x e. Mgm x e/ Smgrp ) -> Smgrp C. Mgm ) : No typesetting found for |- ( ( Smgrp C_ Mgm /\ E. x e. Mgm x e/ Smgrp ) -> Smgrp C. Mgm ) with typecode |-
5	2 3 4	mp2an	Could not format Smgrp C. Mgm : No typesetting found for |- Smgrp C. Mgm with typecode |-