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