Description: A deduction unionizing a non-unionized collection of virtual hypotheses. This would have been named uun221 if the 0th permutation did not exist in set.mm as anabss7 . (Contributed by Alan Sare, 4-Feb-2017) (Proof modification is discouraged.) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | anabss7p1.1 | |- ( ( ( ps /\ ph ) /\ ph ) -> ch ) |
|
| Assertion | anabss7p1 | |- ( ( ps /\ ph ) -> ch ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | anabss7p1.1 | |- ( ( ( ps /\ ph ) /\ ph ) -> ch ) |
|
| 2 | 1 | anabss3 | |- ( ( ps /\ ph ) -> ch ) |