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Theorem 3anrot 939
Description: Rotation law for triple conjunction. (Contributed by NM, 8-Apr-1994.)
Assertion
Ref Expression
3anrot

Proof of Theorem 3anrot
StepHypRef Expression
1 ancom 437 . 2
2 3anass 938 . 2
3 df-3an 936 . 2
41, 2, 33bitr4i 268 1
Colors of variables: wff setvar class
Syntax hints:   wb 176   wa 358   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:  3ancomb  943  3anrev  945  3simpc  954  oqelins4  5794  leaddc2  6215  lemuc2  6254
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