Intuitive semantics for some three-value
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Dimiter Vakarelov
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Article
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1989
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Springer Netherlands
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English
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Four known three-valued logics are formulated axiomatically and several completeness theorems with respect to nonstandard intm','tive semantics, connected " with the notions of information, contrariety and subcontrariety is given. ## 1. Four systems of three-valued logic: P3, L3, P3w and L3w The l