Theorem rcp-FR1 39

Description: Frege Axiom with One Antecedent.

Assertion

Ref	Expression
rcp-FR1	⊢ ((𝛾₁ → (𝜑 → 𝜓)) → ((𝛾₁ → 𝜑) → (𝛾₁ → 𝜓)))

Proof of Theorem rcp-FR1

Step	Hyp	Ref	Expression
1		ax-L2 12	1 ⊢ ((𝛾₁ → (𝜑 → 𝜓)) → ((𝛾₁ → 𝜑) → (𝛾₁ → 𝜓)))

Syntax hints:   → wff-imp 10

This theorem was proved from axioms:  ax-L2 12

This theorem is referenced by:  rcp-FR1.SH  40  rcp-FR2  41