Consistency (knowledge bases) (original) (raw)
A knowledge base KB is consistent iff its negation is not a tautology. I.e., a knowledge base KB is inconsistent (not consistent) iff there is no interpretation which entails KB. Example of an inconsistent knowledge base: KB := { a, ¬a } Consistency in terms of knowledge bases is mostly the same as the natural understanding of consistency. * v * t * e * v * t * e