Theorem nnsno

Description: A positive surreal integer is a surreal. (Contributed by Scott Fenton, 15-Apr-2025)

	Ref	Expression
Assertion	nnsno	⊢ ( 𝐴 ∈ ℕs → 𝐴 ∈ No )

Proof

Step	Hyp	Ref	Expression
1		nnssno	⊢ ℕs ⊆ No
2	1	sseli	⊢ ( 𝐴 ∈ ℕs → 𝐴 ∈ No )