Theorem crnggrpd

Description: A commutative ring is a group. (Contributed by SN, 16-May-2024)

	Ref	Expression
Hypothesis	crngringd.1	|- ( ph -> R e. CRing )
Assertion	crnggrpd	|- ( ph -> R e. Grp )

Proof

Step	Hyp	Ref	Expression
1		crngringd.1	|- ( ph -> R e. CRing )
2	1	crngringd	|- ( ph -> R e. Ring )
3	2	ringgrpd	|- ( ph -> R e. Grp )