Closed alanruttenberg closed 4 months ago
Actually, it is not an issue of skolemization here, but the introduction of a redundant literal in the CNF generated out of bks-1, but also that a reasoner can deal with. The main advantage of the alternative is the readability. It requires, at least for me :-), less brain power to understand the alternative than the original, so thanks.
Former
Replacement
They are logically equivalent. This avoids skolemization in Werner's prover. Credit Werner Ceusters.