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 |