Finds the first occurrence in this sequent having the given ancestor.
Is this sequent of the form :- t = t?
Is this sequent of the form F :- F?
Occurrences on both sides of the sequent, i.e.
Occurrences on both sides of the sequent, i.e. the concatenation of antecedent and succedent.
Removes the specified at.logic.gapt.proofs.occurrences.FormulaOccurrences from each side.
Equality treating each side as a multiset of formulas, ignoring the occurrence.
Equality treating each side as a multiset of formulas, ignoring the occurrence.
Interpretation of the sequent as formula.
Converts to a at.logic.gapt.proofs.HOLSequent, ignoring where the formulas occur.