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| Mirrors > Home > ILE Home > Th. List > 2cn | GIF version | ||
| Description: The number 2 is a complex number. (Contributed by NM, 30-Jul-2004.) |
| Ref | Expression |
|---|---|
| 2cn | ⊢ 2 ∈ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 9357 | . 2 ⊢ 2 ∈ ℝ | |
| 2 | 1 | recni 8332 | 1 ⊢ 2 ∈ ℂ |
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