Axiom ax-mulcom 8123

Description: Multiplication of complex numbers is commutative. Axiom for real and complex numbers, justified by Theorem axmulcom 8081. Proofs should normally use mulcom 8151 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 8020	. . . 4 class CC
3	1, 2	wcel 2200	. . 3 wff A e. CC
4		cB	. . . 4 class B
5	4, 2	wcel 2200	. . 3 wff B e. CC
6	3, 5	wa 104	. 2 wff ( A e. CC /\ B e. CC )
7		cmul 8027	. . . 4 class x.
8	1, 4, 7	co 6013	. . 3 class ( A x. B )
9	4, 1, 7	co 6013	. . 3 class ( B x. A )
10	8, 9	wceq 1395	. 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  8151