ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  simp11 GIF version

Theorem simp11 934
Description: Simplification of doubly triple conjunction. (Contributed by NM, 17-Nov-2011.)
Assertion
Ref Expression
simp11 (((𝜑𝜓𝜒) ∧ 𝜃𝜏) → 𝜑)

Proof of Theorem simp11
StepHypRef Expression
1 simp1 904 . 2 ((𝜑𝜓𝜒) → 𝜑)
213ad2ant1 925 1 (((𝜑𝜓𝜒) ∧ 𝜃𝜏) → 𝜑)
Colors of variables: wff set class
Syntax hints:  wi 4  w3a 885
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101
This theorem depends on definitions:  df-bi 110  df-3an 887
This theorem is referenced by:  simpl11  979  simpr11  988  simp111  1033  simp211  1042  simp311  1051
  Copyright terms: Public domain W3C validator