Description: A positive surreal integer is a surreal. (Contributed by Scott Fenton, 15-Apr-2025)
Ref | Expression | ||
---|---|---|---|
Hypothesis | nnsnod.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℕs ) | |
Assertion | nnsnod | ⊢ ( 𝜑 → 𝐴 ∈ No ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnsnod.1 | ⊢ ( 𝜑 → 𝐴 ∈ ℕs ) | |
2 | nnsno | ⊢ ( 𝐴 ∈ ℕs → 𝐴 ∈ No ) | |
3 | 1 2 | syl | ⊢ ( 𝜑 → 𝐴 ∈ No ) |