Description: Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017)
Ref | Expression | ||
---|---|---|---|
Hypothesis | ad5ant2.1 | |- ( ( ph /\ ps ) -> ch ) |
|
Assertion | ad5ant12 | |- ( ( ( ( ( ph /\ ps ) /\ th ) /\ ta ) /\ et ) -> ch ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ad5ant2.1 | |- ( ( ph /\ ps ) -> ch ) |
|
2 | 1 | ad3antrrr | |- ( ( ( ( ( ph /\ ps ) /\ th ) /\ ta ) /\ et ) -> ch ) |