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Mirrors > Home > MPE Home > Th. List > nn0cn | Structured version Visualization version GIF version |
Description: A nonnegative integer is a complex number. (Contributed by NM, 9-May-2004.) |
Ref | Expression |
---|---|
nn0cn | ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℂ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nn0sscn 12247 | . 2 ⊢ ℕ0 ⊆ ℂ | |
2 | 1 | sseli 3918 | 1 ⊢ (𝐴 ∈ ℕ0 → 𝐴 ∈ ℂ) |
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