Theorem nnxr

Description: A natural number is an extended real. (Contributed by Glauco Siliprandi, 24-Jan-2025)

	Ref	Expression
Assertion	nnxr	⊢ ( 𝑁 ∈ ℕ → 𝑁 ∈ ℝ* )

Proof

Step	Hyp	Ref	Expression
1		id	⊢ ( 𝑁 ∈ ℕ → 𝑁 ∈ ℕ )
2	1	nnxrd	⊢ ( 𝑁 ∈ ℕ → 𝑁 ∈ ℝ* )