English | PDF,EPUB | 2012 | 109 Pages | ISBN : 144714001X | 5.3 MB

Description Logics (DLs) is a family of formalisms used to represent knowledge of a domain.

They are equipped with a formal logic-based semantics. Knowledge representation systems based on description logics provide various inference capabilities that deduce implicit knowledge from the explicitly represented knowledge.
A Proof Theory for Description Logics introduces Sequent Calculi and Natural Deduction for some DLs (ALC, ALCQ). Cut-elimination and Normalization are proved for the calculi. The author argues that such systems can improve the extraction of computational content from DLs proofs for explanation purposes.



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