Axiom ax-mulcom 7975

Description: Multiplication of complex numbers is commutative. Axiom for real and complex numbers, justified by Theorem axmulcom 7933. Proofs should normally use mulcom 8003 instead. (New usage is discouraged.) (Contributed by NM, 22-Nov-1994.)

Assertion

Ref	Expression
ax-mulcom	|- ( ( A e. CC /\ B e. CC ) -> ( A x. B ) = ( B x. A ) )

Detailed syntax breakdown of Axiom ax-mulcom

Step	Hyp	Ref	Expression
1		cA	. . . 4 class A
2		cc 7872	. . . 4 class CC
3	1, 2	wcel 2164	. . 3 wff A e. CC
4		cB	. . . 4 class B
5	4, 2	wcel 2164	. . 3 wff B e. CC
6	3, 5	wa 104	. 2 wff ( A e. CC /\ B e. CC )
7		cmul 7879	. . . 4 class x.
8	1, 4, 7	co 5919	. . 3 class ( A x. B )
9	4, 1, 7	co 5919	. . 3 class ( B x. A )
10	8, 9	wceq 1364	. 2 wff ( A x. B ) = ( B x. A )
11	6, 10	wi 4	1 wff ( ( A e. CC /\ B e. CC ) -> ( A x. B ) = ( B x. A ) )

This axiom is referenced by:  mulcom  8003