This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: An importation inference. (Contributed by NM, 26-Apr-1994)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | imp31.1 | ||
| Assertion | imp32 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | imp31.1 | ||
| 2 | 1 | impd | |
| 3 | 2 | imp |