Description: The truth value F. implies anything. (Contributed by Mario Carneiro, 9-Feb-2017)
Ref | Expression | ||
---|---|---|---|
Assertion | falimd | |- ( ( ph /\ F. ) -> ps ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | falim | |- ( F. -> ps ) |
|
2 | 1 | adantl | |- ( ( ph /\ F. ) -> ps ) |