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Mirrors > Home > QLE Home > Th. List > lbtr | Unicode version |
Description: Transitive inference. |
Ref | Expression |
---|---|
lbtr.1 |
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lbtr.2 |
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Ref | Expression |
---|---|
lbtr |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lbtr.2 |
. . . . 5
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2 | 1 | ax-r1 35 |
. . . 4
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3 | 2 | lan 77 |
. . 3
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4 | lbtr.1 |
. . . 4
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5 | 4 | df2le2 136 |
. . 3
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6 | 3, 5 | ax-r2 36 |
. 2
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7 | 6 | df2le1 135 |
1
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