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Theorem uun123p1 41502
Description: A deduction unionizing a non-unionized collection of virtual hypotheses. (Contributed by Alan Sare, 4-Feb-2017.) (Proof modification is discouraged.) (New usage is discouraged.)
Ref Expression
uun123p1.1 ((𝜓𝜑𝜒) → 𝜃)
Ref Expression
uun123p1 ((𝜑𝜓𝜒) → 𝜃)

Proof of Theorem uun123p1
StepHypRef Expression
1 uun123p1.1 . 2 ((𝜓𝜑𝜒) → 𝜃)
213com12 1120 1 ((𝜑𝜓𝜒) → 𝜃)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1084
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 210  df-an 400  df-3an 1086
This theorem is referenced by: (None)
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