Theorem oveq1d

Description: Equality deduction for operation value. (Contributed by NM, 13-Mar-1995)

	Ref	Expression
Hypothesis	oveq1d.1	|- ( ph -> A = B )
Assertion	oveq1d	|- ( ph -> ( A F C ) = ( B F C ) )

Proof

Step	Hyp	Ref	Expression
1		oveq1d.1	|- ( ph -> A = B )
2		oveq1	|- ( A = B -> ( A F C ) = ( B F C ) )
3	1 2	syl	|- ( ph -> ( A F C ) = ( B F C ) )