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Description: Rotate lattice join of 3 classes. (Contributed by NM, 23-Jul-2012)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | latjass.b | ||
| latjass.j | |||
| Assertion | latjrot |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | latjass.b | ||
| 2 | latjass.j | ||
| 3 | 1 2 | latj31 | |
| 4 | simpl | ||
| 5 | simpr3 | ||
| 6 | simpr2 | ||
| 7 | simpr1 | ||
| 8 | 1 2 | latj32 | |
| 9 | 4 5 6 7 8 | syl13anc | |
| 10 | 3 9 | eqtrd |