ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  a4i Unicode version

Theorem a4i 1432
Description: Inference rule reversing generalization.
Hypothesis
Ref Expression
a4i.1
Assertion
Ref Expression
a4i

Proof of Theorem a4i
StepHypRef Expression
1 a4i.1 . 2
2 ax-4 1392 . 2
31, 2ax-mp 8 1
Colors of variables: wff set class
Syntax hints:  wal 1335
This theorem is referenced by:  19.8a  1479
This theorem was proved from axioms:  ax-mp 8  ax-4 1392
  Copyright terms: Public domain W3C validator