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| Mirrors > Home > MPE Home > Th. List > peano2zm | Structured version Visualization version Unicode version | ||
| Description: "Reverse" second Peano postulate for integers. (Contributed by NM, 12-Sep-2005.) |
| Ref | Expression |
|---|---|
| peano2zm |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1z 11407 |
. 2
| |
| 2 | zsubcl 11419 |
. 2
| |
| 3 | 1, 2 | mpan2 707 |
1
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