Theorem re0

Description: The real part of zero. (Contributed by NM, 27-Jul-1999)

	Ref	Expression
Assertion	re0	|- ( Re ` 0 ) = 0

Proof

Step	Hyp	Ref	Expression
1		0re	|- 0 e. RR
2		rere	|- ( 0 e. RR -> ( Re ` 0 ) = 0 )
3	1 2	ax-mp	|- ( Re ` 0 ) = 0