NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  3anrev Unicode version

Theorem 3anrev 945
Description: Reversal law for triple conjunction. (Contributed by NM, 21-Apr-1994.)
Assertion
Ref Expression
3anrev

Proof of Theorem 3anrev
StepHypRef Expression
1 3ancoma 941 . 2
2 3anrot 939 . 2
31, 2bitr4i 243 1
Colors of variables: wff setvar class
Syntax hints:   wb 176   w3a 934
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 177  df-an 360  df-3an 936
This theorem is referenced by:  3com13  1156
  Copyright terms: Public domain W3C validator