Theorem 1q

Description: The number 1 is rational. (Contributed by SN, 30-Aug-2026)

	Ref	Expression
Assertion	1q	$$⊢1\in \mathbb{Q}$$

Proof

Step	Hyp	Ref	Expression
1		zssq	$$⊢\mathbb{Z}\subseteq \mathbb{Q}$$
2		1z	$$⊢1\in \mathbb{Z}$$
3	1 2	sselii	$$⊢1\in \mathbb{Q}$$