Metamath Proof Explorer

Theorem zcnd

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

Ref Expression
Hypothesis zred.1 
|- ( ph -> A e. ZZ )
Assertion zcnd 
|- ( ph -> A e. CC )

Proof

Step Hyp Ref Expression
1 zred.1 
 |-  ( ph -> A e. ZZ )
2 1 zred 
 |-  ( ph -> A e. RR )
3 2 recnd 
 |-  ( ph -> A e. CC )