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Theorem com3r 73
Description: Commutation of antecedents. Rotate right. (Contributed by NM, 25-Apr-1994.)
Hypothesis
Ref Expression
com3.1 (φ → (ψ → (χθ)))
Assertion
Ref Expression
com3r (χ → (φ → (ψθ)))

Proof of Theorem com3r
StepHypRef Expression
1 com3.1 . . 3 (φ → (ψ → (χθ)))
21com23 72 . 2 (φ → (χ → (ψθ)))
32com12 27 1 (χ → (φ → (ψθ)))
Colors of variables: wff setvar class
Syntax hints:  wi 4
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7
This theorem is referenced by:  com13  74  com3l  75  com14  82  exp3a  425  ax12b  1689  mo  2226  moexex  2273  mob  3018  nnadjoin  4520
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