Theorem 1p0e1 9106

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 7972	. 2 |- 1 e. CC
2	1	addridi 8168	1 |- ( 1 + 0 ) = 1

Syntax hints:   = wceq 1364  (class class class)co 5922   0cc0 7879   1c1 7880   + caddc 7882

This theorem was proved from axioms:  ax-mp 5  ax-1cn 7972  ax-0id 7987

This theorem is referenced by:  bernneq  10752  bcpasc  10858  4sqlem19  12578  ef2pi  15041  1sgm2ppw  15231