This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Lemma for 1arith . (Contributed by Mario Carneiro, 30-May-2014)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | 1arith.1 | ||
| Assertion | 1arithlem3 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1arith.1 | ||
| 2 | 1 | 1arithlem1 | |
| 3 | pccl | ||
| 4 | 3 | ancoms | |
| 5 | 2 4 | fmpt3d |