Theorem com3r 73

Description: Commutation of antecedents. Rotate right. (Contributed by NM, 25-Apr-1994.)

Hypothesis

Ref	Expression
com3.1	⊢ (φ → (ψ → (χ → θ)))

Assertion

Ref	Expression
com3r	⊢ (χ → (φ → (ψ → θ)))

Proof of Theorem com3r

Step	Hyp	Ref	Expression
1		com3.1	. . 3 ⊢ (φ → (ψ → (χ → θ)))
2	1	com23 72	. 2 ⊢ (φ → (χ → (ψ → θ)))
3	2	com12 27	1 ⊢ (χ → (φ → (ψ → θ)))

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  3019  nnadjoin  4521