Theorem 4pos

Description: The number 4 is positive. (Contributed by NM, 27-May-1999) (Proof shortened by Umit Teoman Dogan, 10-Jun-2026)

	Ref	Expression
Assertion	4pos	$$⊢0<4$$

Proof

Step	Hyp	Ref	Expression
1		4nn	$$⊢4\in \mathbb{N}$$
2	1	nngt0i	$$⊢0<4$$