Metamath Proof Explorer


Theorem 3comr

Description: Commutation in antecedent. Rotate right. (Contributed by NM, 28-Jan-1996) (Revised by Wolf Lammen, 9-Apr-2022)

Ref Expression
Hypothesis 3exp.1 φψχθ
Assertion 3comr χφψθ

Proof

Step Hyp Ref Expression
1 3exp.1 φψχθ
2 1 3com12 ψφχθ
3 2 3com13 χφψθ