Theorem 4rp

Description: 4 is a positive real. (Contributed by SN, 26-Aug-2025)

	Ref	Expression
Assertion	4rp	$$⊢4\in {ℝ}^{+}$$

Proof

Step	Hyp	Ref	Expression
1		4re	$$⊢4\in ℝ$$
2		4pos	$$⊢0<4$$
3	1 2	elrpii	$$⊢4\in {ℝ}^{+}$$