Checks if the sequent is a tautology using f as the cut formula.
Checks if the sequent is a tautology using f as the cut formula.
A prover that performs the validity check.
The formula to be checked. It will be instantiated with the eigenvariable of the solution's grammar. For details, see introqcuts.pdf, Chapter 5, Prop. 4, Example 6.
True iff f still represents a valid solution.
Give each atom in a formula an index.
Give each atom in a formula an index. Multiple occurrences of the same atom get different indices.
A list of clauses.
Formula, but with each atom turned into a tuple. The 2nd component is the atom's index.