Description: Elimination rule identical to mp2 . The non-virtual deduction form is the virtual deduction form, which is mp2 . (Contributed by Alan Sare, 14-Jun-2011) (Proof modification is discouraged.) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | e00.1 | |- ph |
|
| e00.2 | |- ps |
||
| e00.3 | |- ( ph -> ( ps -> ch ) ) |
||
| Assertion | e00 | |- ch |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | e00.1 | |- ph |
|
| 2 | e00.2 | |- ps |
|
| 3 | e00.3 | |- ( ph -> ( ps -> ch ) ) |
|
| 4 | 1 2 3 | mp2 | |- ch |