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Description: Refine o1bdd2 to give a strictly positive upper bound. (Contributed by Mario Carneiro, 25-May-2016)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | o1bdd2.1 | ||
| o1bdd2.2 | |||
| o1bdd2.3 | |||
| o1bdd2.4 | |||
| o1bdd2.5 | |||
| o1bdd2.6 | |||
| Assertion | o1bddrp |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | o1bdd2.1 | ||
| 2 | o1bdd2.2 | ||
| 3 | o1bdd2.3 | ||
| 4 | o1bdd2.4 | ||
| 5 | o1bdd2.5 | ||
| 6 | o1bdd2.6 | ||
| 7 | 3 | abscld | |
| 8 | 3 | lo1o12 | |
| 9 | 4 8 | mpbid | |
| 10 | 1 2 7 9 5 6 | lo1bddrp |