Metamath Proof Explorer


Theorem n0sno

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

Ref Expression
Assertion n0sno ( 𝐴 ∈ ℕ0s𝐴 No )

Proof

Step Hyp Ref Expression
1 n0ssno 0s No
2 1 sseli ( 𝐴 ∈ ℕ0s𝐴 No )