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| Mirrors > Home > QLE Home > Th. List > bltr | Unicode version | ||
| Description: Transitive inference. |
| Ref | Expression |
|---|---|
| bltr.1 |
|
| bltr.2 |
|
| Ref | Expression |
|---|---|
| bltr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bltr.1 |
. . . 4
| |
| 2 | 1 | ax-r5 38 |
. . 3
|
| 3 | bltr.2 |
. . . 4
| |
| 4 | 3 | df-le2 131 |
. . 3
|
| 5 | 2, 4 | ax-r2 36 |
. 2
|
| 6 | 5 | df-le1 130 |
1
|
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