This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Two halves make a whole. (Contributed by Mario Carneiro, 27-May-2016)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | 2timesd.1 | ||
| Assertion | 2halvesd |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2timesd.1 | ||
| 2 | 2halves | ||
| 3 | 1 2 | syl |