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| Mirrors > Home > MPE Home > Th. List > ltletrd | Structured version Visualization version Unicode version | ||
| Description: Transitive law deduction for 'less than', 'less than or equal to'. (Contributed by NM, 9-Jan-2006.) |
| Ref | Expression |
|---|---|
| ltd.1 |
|
| ltd.2 |
|
| letrd.3 |
|
| ltletrd.4 |
|
| ltletrd.5 |
|
| Ref | Expression |
|---|---|
| ltletrd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltletrd.4 |
. 2
| |
| 2 | ltletrd.5 |
. 2
| |
| 3 | ltd.1 |
. . 3
| |
| 4 | ltd.2 |
. . 3
| |
| 5 | letrd.3 |
. . 3
| |
| 6 | ltletr 10129 |
. . 3
| |
| 7 | 3, 4, 5, 6 | syl3anc 1326 |
. 2
|
| 8 | 1, 2, 7 | mp2and 715 |
1
|
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