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Mirrors > Home > MPE Home > Th. List > 2pos | Structured version Unicode version |
Description: The number 2 is positive. (Contributed by NM, 27-May-1999.) |
Ref | Expression |
---|---|
2pos |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 9499 |
. . 3
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2 | 0lt1 9976 |
. . 3
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3 | 1, 1, 2, 2 | addgt0ii 9996 |
. 2
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4 | df-2 10494 |
. 2
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5 | 3, 4 | breqtrri 4428 |
1
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