object fixDerivation extends Logger
Sometimes, we have a resolution refutation R of a set of clauses C and want a refutation R' of a set C' such that C implies C'.
This algorithm tries to obtain R' by trying to replace clauses c from C in R by derivations of C from C'.
In general, if R is a derivation of a clause c, the result R' of fixDerivation(R) is a derivation of a subclause of c.
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- fixDerivation.scala
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- def tryDeriveBySubsumptionModEq(to: HOLClause, from: HOLClause): Option[ResolutionProof]
- def tryDeriveTrivial(to: HOLClause, from: Seq[HOLClause]): Option[InitialClause with Serializable]
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- object matchingModEq extends syntacticMatching