Axiom ax-0id 8103

Description: 0 is an identity element for real addition. Axiom for real and complex numbers, justified by Theorem ax0id 8061.

Proofs should normally use addrid 8280 instead. (New usage is discouraged.) (Contributed by Jim Kingdon, 16-Jan-2020.)

Assertion

Ref	Expression
ax-0id	|- ( A e. CC -> ( A + 0 ) = A )

Detailed syntax breakdown of Axiom ax-0id

Step	Hyp	Ref	Expression
1		cA	. . 3 class A
2		cc 7993	. . 3 class CC
3	1, 2	wcel 2200	. 2 wff A e. CC
4		cc0 7995	. . . 4 class 0
5		caddc 7998	. . . 4 class +
6	1, 4, 5	co 6000	. . 3 class ( A + 0 )
7	6, 1	wceq 1395	. 2 wff ( A + 0 ) = A
8	3, 7	wi 4	1 wff ( A e. CC -> ( A + 0 ) = A )

This axiom is referenced by:  addrid  8280