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| Mirrors > Home > MPE Home > Th. List > nn0cn | Structured version Visualization version Unicode version | ||
| Description: A nonnegative integer is a complex number. (Contributed by NM, 9-May-2004.) |
| Ref | Expression |
|---|---|
| nn0cn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0sscn 11297 |
. 2
| |
| 2 | 1 | sseli 3599 |
1
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