NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  exbir Unicode version

Theorem exbir 1365
Description: Exportation implication also converting head from biconditional to conditional. This proof is exbirVD in automatically translated and minimized. (Contributed by Alan Sare, 31-Dec-2011.) (New usage is discouraged.) TODO: decide if this is worth keeping.
Ref Expression

Proof of Theorem exbir
StepHypRef Expression
1 bi2 189 . . 3
21imim2i 13 . 2
32exp3a 425 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wb 176   wa 358
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
This theorem depends on definitions:  df-bi 177  df-an 360
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator