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Mirrors > Home > MPE Home > Th. List > nngt0 | Structured version Visualization version Unicode version |
Description: A positive integer is positive. (Contributed by NM, 26-Sep-1999.) |
Ref | Expression |
---|---|
nngt0 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnre 11027 |
. 2
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2 | nnge1 11046 |
. 2
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3 | 0lt1 10550 |
. . 3
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4 | 0re 10040 |
. . . 4
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5 | 1re 10039 |
. . . 4
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6 | ltletr 10129 |
. . . 4
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7 | 4, 5, 6 | mp3an12 1414 |
. . 3
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8 | 3, 7 | mpani 712 |
. 2
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9 | 1, 2, 8 | sylc 65 |
1
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