Description: Version of ax-5 with antecedent. Useful in proofs of deduction versions of bound-variable hypothesis builders. (Contributed by NM, 1-Mar-2013)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | ax5d | |- ( ph -> ( ps -> A. x ps ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-5 | |- ( ps -> A. x ps ) |
|
| 2 | 1 | a1i | |- ( ph -> ( ps -> A. x ps ) ) |