Description: A rearrangement of conjuncts for a 4-right-nested conjunction. (Contributed by Alan Sare, 30-May-2018)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | 4an4132.1 | ||
| Assertion | 4an4132 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4an4132.1 | ||
| 2 | simpr | ||
| 3 | simplr | ||
| 4 | 2 3 | jca | |
| 5 | simpllr | ||
| 6 | simplll | ||
| 7 | 4 5 6 1 | syl21anc |