Theorem 1p0e1 9399

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 8262	. 2 |- 1 e. CC
2	1	addridi 8458	1 |- ( 1 + 0 ) = 1

Syntax hints:   = wceq 1402  (class class class)co 6075   0cc0 8169   1c1 8170   + caddc 8172

This theorem was proved from axioms:  ax-mp 5  ax-1cn 8262  ax-0id 8277

This theorem is referenced by:  bernneq  11076  bcpasc  11182  4sqlem19  13166  ballotfilemic  13228  ef2pi  15829  1sgm2ppw  16023