Theorem oveq2 101

Description: Equality theorem for binary operation. (Contributed by Mario Carneiro, 7-Oct-2014.)

Hypotheses

Ref	Expression
oveq.1	|- F:(al -> (be -> ga))
oveq.2	|- A:al
oveq.3	|- B:be
oveq2.4	|- R |= [B = T]

Assertion

Ref	Expression
oveq2	|- R |= [[AFB] = [AFT]]

Proof of Theorem oveq2

Step	Hyp	Ref	Expression
1		oveq.1	. 2 |- F:(al -> (be -> ga))
2		oveq.2	. 2 |- A:al
3		oveq.3	. 2 |- B:be
4		oveq2.4	. . . 4 |- R |= [B = T]
5	4	ax-cb1 29	. . 3 |- R:*
6	5, 2	eqid 83	. 2 |- R |= [A = A]
7	1, 2, 3, 6, 4	oveq12 100	1 |- R |= [[AFB] = [AFT]]

Syntax hints:   -> ht 2   = ke 7  [kbr 9   |= wffMMJ2 11  wffMMJ2t 12

This theorem was proved from axioms:  ax-syl 15  ax-jca 17  ax-trud 26  ax-cb1 29  ax-cb2 30  ax-weq 40  ax-refl 42  ax-eqmp 45  ax-wc 49  ax-ceq 51  ax-wov 71  ax-eqtypi 77  ax-eqtypri 80

This theorem depends on definitions:  df-ov 73

This theorem is referenced by:  imval  146  orval  147  anval  148  ecase  163  exlimdv2  166  exlimd  183  axpow  221  axun  222