Theorem 1p0e1 9154

Description: 1 + 0 = 1. (Contributed by David A. Wheeler, 8-Dec-2018.)

Assertion

Ref	Expression
1p0e1	|- ( 1 + 0 ) = 1

Proof of Theorem 1p0e1

Step	Hyp	Ref	Expression
1		ax-1cn 8020	. 2 |- 1 e. CC
2	1	addridi 8216	1 |- ( 1 + 0 ) = 1

Syntax hints:   = wceq 1373  (class class class)co 5946   0cc0 7927   1c1 7928   + caddc 7930

This theorem was proved from axioms:  ax-mp 5  ax-1cn 8020  ax-0id 8035

This theorem is referenced by:  bernneq  10807  bcpasc  10913  4sqlem19  12765  ef2pi  15310  1sgm2ppw  15500