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Mirrors > Home > ILE Home > Th. List > ltled | Unicode version |
Description: 'Less than' implies 'less than or equal to'. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
ltd.1 |
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ltd.2 |
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ltled.1 |
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Ref | Expression |
---|---|
ltled |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltled.1 |
. 2
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2 | ltd.1 |
. . 3
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3 | ltd.2 |
. . 3
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4 | ltle 8109 |
. . 3
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5 | 2, 3, 4 | syl2anc 411 |
. 2
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6 | 1, 5 | mpd 13 |
1
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