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| Mirrors > Home > MPE Home > Th. List > elfznn | Structured version Visualization version Unicode version | ||
| Description: A member of a finite set of sequential integers starting at 1 is a positive integer. (Contributed by NM, 24-Aug-2005.) |
| Ref | Expression |
|---|---|
| elfznn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elfzelz 12342 |
. 2
| |
| 2 | elfzle1 12344 |
. 2
| |
| 3 | elnnz1 11403 |
. 2
| |
| 4 | 1, 2, 3 | sylanbrc 698 |
1
|
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