Theorem addid1 7620

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 7453	1 |- ( A e. CC -> ( A + 0 ) = A )

Syntax hints:   -> wi 4   = wceq 1289   e. wcel 1438  (class class class)co 5652   CCcc 7348   0cc0 7350   + caddc 7353

This theorem was proved from axioms:  ax-0id 7453

This theorem is referenced by:  addid2  7621  00id  7623  addid1i  7624  addid1d  7631  addcan2  7663  subid  7701  subid1  7702  addid0  7851  shftval3  10261  reim0  10295  fisumcvg  10766  fsum3cvg  10767  isummolem2a  10771