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Metamath Proof Explorer

Theorem zcn

Description: An integer is a complex number. (Contributed by NM, 9-May-2004)

Ref Expression
Assertion zcn ( 𝑁 ∈ ℤ → 𝑁 ∈ ℂ )

Proof

Step Hyp Ref Expression
1 zre ⊢ ( 𝑁 ∈ ℤ → 𝑁 ∈ ℝ )
2 1 recnd ⊢ ( 𝑁 ∈ ℤ → 𝑁 ∈ ℂ )