The sequent that should be proved.
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.
The formula whose validity should be checked.
True if the formula is valid.
The formula whose validity should be checked.
True if the formula is valid.
(Since version 2015-08-25) Use Prover9Importer.lkProof instead
(Since version 2015-08-25) Use Prover9Importer.lkProof instead
(Since version 2015-08-25) Use Prover9Importer.robinsonProof instead
(Since version 2015-08-25) Use Prover9Importer.robinsonProof instead