Metamath Proof Explorer


Theorem znod

Description: A surreal integer is a surreal. Deduction form. (Contributed by Scott Fenton, 17-May-2025)

Ref Expression
Hypothesis znod.1 ⊢ φ → A ∈ ℤ s
Assertion znod ⊢ φ → A ∈ No

Proof

Step Hyp Ref Expression
1 znod.1 ⊢ φ → A ∈ ℤ s
2 zno ⊢ A ∈ ℤ s → A ∈ No
3 1 2 syl ⊢ φ → A ∈ No