Theorem oveq1i

Description: Equality inference for operation value. (Contributed by NM, 28-Feb-1995)

	Ref	Expression
Hypothesis	oveq1i.1	|- A = B
Assertion	oveq1i	|- ( A F C ) = ( B F C )

Proof

Step	Hyp	Ref	Expression
1		oveq1i.1	|- A = B
2		oveq1	|- ( A = B -> ( A F C ) = ( B F C ) )
3	1 2	ax-mp	|- ( A F C ) = ( B F C )