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| Mirrors > Home > ILE Home > Th. List > nnz | Unicode version | ||
| Description: A positive integer is an integer. (Contributed by NM, 9-May-2004.) |
| Ref | Expression |
|---|---|
| nnz |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnssz 9343 |
. 2
| |
| 2 | 1 | sseli 3179 |
1
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