From heaps and gaps to heaps of gluts

摘要: One of the few points agreement to be found in mainstream responses logical and semantic problems generated by vagueness is view that if any modification classical logic semantics required at all then it will only such as admit underdetermined reference truth-value gaps. Logics including many valued logics, fuzzy supervaluation logics provide accord with this view. The thought an adequate response might require recognition cases overdetermination truth value gluts has supporters. This imbalance lacks justification. As happens, Jaskowski's paraconsistent discussive logic-a which admits gluts-can defended reflecting on similarities between popular supervaluationist analysis already philosophical literature. A simple dualisation results a based what been termed subvaluational semantics.