Description: Importation with conjunction in consequent. (Contributed by NM, 9-Aug-1994)
Ref | Expression | ||
---|---|---|---|
Hypothesis | impac.1 | |- ( ph -> ( ps -> ch ) ) |
|
Assertion | impac | |- ( ( ph /\ ps ) -> ( ch /\ ps ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | impac.1 | |- ( ph -> ( ps -> ch ) ) |
|
2 | 1 | ancrd | |- ( ph -> ( ps -> ( ch /\ ps ) ) ) |
3 | 2 | imp | |- ( ( ph /\ ps ) -> ( ch /\ ps ) ) |