Metamath Proof Explorer


Theorem funALTVeqi

Description: Equality inference for the function predicate. (Contributed by Jonathan Ben-Naim, 3-Jun-2011)

Ref Expression
Hypothesis funALTVeqi.1 A = B
Assertion funALTVeqi FunALTV A FunALTV B

Proof

Step Hyp Ref Expression
1 funALTVeqi.1 A = B
2 funALTVeq A = B FunALTV A FunALTV B
3 1 2 ax-mp FunALTV A FunALTV B