Description: Modus ponens combined with generalization. (Contributed by NM, 24-May-1994)
Ref | Expression | ||
---|---|---|---|
Hypotheses | mpg.1 | |- ( A. x ph -> ps ) |
|
mpg.2 | |- ph |
||
Assertion | mpg | |- ps |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mpg.1 | |- ( A. x ph -> ps ) |
|
2 | mpg.2 | |- ph |
|
3 | 2 | ax-gen | |- A. x ph |
4 | 3 1 | ax-mp | |- ps |