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 ) |