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Theorem ancom1s 558
Description: Inference commuting a nested conjunction in antecedent. (Contributed by NM, 24-May-2006.) (Proof shortened by Wolf Lammen, 24-Nov-2012.)
Hypothesis
Ref Expression
an32s.1 (((𝜑𝜓) ∧ 𝜒) → 𝜃)
Assertion
Ref Expression
ancom1s (((𝜓𝜑) ∧ 𝜒) → 𝜃)

Proof of Theorem ancom1s
StepHypRef Expression
1 pm3.22 263 . 2 ((𝜓𝜑) → (𝜑𝜓))
2 an32s.1 . 2 (((𝜑𝜓) ∧ 𝜒) → 𝜃)
31, 2sylan 281 1 (((𝜓𝜑) ∧ 𝜒) → 𝜃)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107
This theorem is referenced by:  bilukdc  1374  prarloc  7304  leltadd  8202  divmul13ap  8468  modqmulmodr  10156  fzomaxdif  10878
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