ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  simp32 GIF version

Theorem simp32 1065
Description: Simplification of doubly triple conjunction. (Contributed by NM, 17-Nov-2011.)
Assertion
Ref Expression
simp32 ((𝜑𝜓 ∧ (𝜒𝜃𝜏)) → 𝜃)

Proof of Theorem simp32
StepHypRef Expression
1 simp2 1029 . 2 ((𝜒𝜃𝜏) → 𝜃)
213ad2ant3 1051 1 ((𝜑𝜓 ∧ (𝜒𝜃𝜏)) → 𝜃)
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  w3a 1009
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108
This proof depends on definitions:  df-bi 117  df-3an 1011
This theorem is used by:  simpl32  1110  simpr32  1119  simp132  1164  simp232  1173  simp332  1182  bitsfzo  12722
  Copyright terms: Public domain W3C validator