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Mirrors > Home > QLE Home > Th. List > df-le2 | Unicode version |
Description: Define 'less than or equal to'. See df-le1 130 for the other direction. |
Ref | Expression |
---|---|
df-le2.1 |
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Ref | Expression |
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df-le2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wva |
. . 3
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2 | wvb |
. . 3
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3 | 1, 2 | wo 6 |
. 2
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4 | 3, 2 | wb 1 |
1
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