Description: An elimination deduction. (Contributed by Alan Sare, 4-Feb-2017) (Proof modification is discouraged.) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | eel00cT.1 | |- ph | |
| eel00cT.2 | |- ps | ||
| eel00cT.3 | |- ( ( ph /\ ps ) -> ch ) | ||
| Assertion | eel00cT | |- ( T. -> ch ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | eel00cT.1 | |- ph | |
| 2 | eel00cT.2 | |- ps | |
| 3 | eel00cT.3 | |- ( ( ph /\ ps ) -> ch ) | |
| 4 | 1 3 | mpan | |- ( ps -> ch ) | 
| 5 | 2 4 | ax-mp | |- ch | 
| 6 | 5 | a1i | |- ( T. -> ch ) |