Theorem syl11 31

Description: A syllogism inference. Commuted form of an instance of syl 14. (Contributed by BJ, 25-Oct-2021.)

Hypotheses

Ref	Expression
syl11.1	⊢ (𝜑 → (𝜓 → 𝜒))
syl11.2	⊢ (𝜃 → 𝜑)

Assertion

Ref	Expression
syl11	⊢ (𝜓 → (𝜃 → 𝜒))

Proof of Theorem syl11

Step	Hyp	Ref	Expression
1		syl11.2	. . 3 ⊢ (𝜃 → 𝜑)
2		syl11.1	. . 3 ⊢ (𝜑 → (𝜓 → 𝜒))
3	1, 2	syl 14	. 2 ⊢ (𝜃 → (𝜓 → 𝜒))
4	3	com12 30	1 ⊢ (𝜓 → (𝜃 → 𝜒))

Syntax hints:   → wi 4

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7

This theorem is referenced by:  updjud  6960  alzdvds  11541  fiinopn  12160  cnmptcom  12456  metcnp3  12669