Theorem addid1 7151

Description: 0 is an additive identity. (Contributed by Jim Kingdon, 16-Jan-2020.)

Assertion

Ref	Expression
addid1	|- ( A e. CC -> ( A + 0 ) = A )

Proof of Theorem addid1

Step	Hyp	Ref	Expression
1		ax-0id 6992	1 |- ( A e. CC -> ( A + 0 ) = A )

Syntax hints:   -> wi 4   = wceq 1243   e. wcel 1393  (class class class)co 5512   CCcc 6887   0cc0 6889   + caddc 6892

This theorem was proved from axioms:  ax-0id 6992

This theorem is referenced by:  addid2  7152  00id  7154  addid1i  7155  addid1d  7162  addcan2  7192  subid  7230  subid1  7231  shftval3  9428  reim0  9461