Theorem altru

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

	Ref	Expression
Assertion	altru	$$⊢\forall x\top$$

Proof

Step	Hyp	Ref	Expression
1		tru	$$⊢\top$$
2	1	ax-gen	$$⊢\forall x\top$$