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Metamath Proof Explorer

Theorem halfcn

Description: One-half is a complex number. (Contributed by David A. Wheeler, 8-Dec-2018)

Ref Expression
Assertion halfcn 
|- ( 1 / 2 ) e. CC

Proof

Step Hyp Ref Expression
1 2cn 
 |-  2 e. CC
2 2ne0 
 |-  2 =/= 0
3 1 2 reccli 
 |-  ( 1 / 2 ) e. CC