An LK-Proof of the sequent, or None if not successful.
The formula that should be proved.
An LK-Proof of :- formula, or None if not successful.
Checks whether a set of clauses is unsatisfiable.
Checks whether a set of clauses is unsatisfiable.
Checks whether a formula is unsatisfiable.
Checks whether a formula is unsatisfiable.
True if the formula is valid.
The formula whose validity should be checked.
True if the formula is valid.
Starts an incremental proving session.
Starts an incremental proving session.
Use prover9 to get LK proof and Z3 or veriT for validity check.