Theorem alfal

Description: For all sets, -. F. is true. (Contributed by Anthony Hart, 13-Sep-2011)

	Ref	Expression
Assertion	alfal	⊢ ∀ 𝑥 ¬ ⊥

Proof

Step	Hyp	Ref	Expression
1		fal	⊢ ¬ ⊥
2	1	ax-gen	⊢ ∀ 𝑥 ¬ ⊥