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Description Logic - Reasoning
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Main reasoning tasks for DL systems:
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Satisfiability : Check if the assertions in a KB have a model
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Instance checking : Check if an instance belongs to a certain concept
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Concept satisfiability : Check if the definition of a concept can be satisfied
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Subsumption : Check if a concept A subsumes a concept B (if every individual of a concept B is also of concept A)
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Equivalence : A ≡ B ⇔ B ⊑ A and A ⊑ B
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Retrieval : Retrieve a set of instances that belong to a certain concept
