Metamath Proof Explorer


Theorem zcnd

Description: An integer is a complex number. (Contributed by Mario Carneiro, 28-May-2016)

Ref Expression
Hypothesis zred.1 φA
Assertion zcnd φA

Proof

Step Hyp Ref Expression
1 zred.1 φA
2 1 zred φA
3 2 recnd φA