On Ignorance and Contradiction
نویسنده
چکیده
A critical view of the alleged significance of Belnap four-valued logic for reasoning under inconsistent and incomplete information is provided. The difficulty lies in the confusion between truth-values and information states, when reasoning about Boolean propositions. So our critique is along the lines of previous debates on the relevance of many-valued logics and especially of the extension of the Boolean truth-tables to more than two values as a tool for reasoning about uncertainty. The critique also questions the significance of partial logic.
منابع مشابه
On degrees of truth, partial ignorance and contradiction
In many works dealing with knowledge representation, there is a temptation to extend the truth-set with values expressing ignorance and contradiction. This is the case with partial logic and Belnap bilattice logic. This is also true in interval-valued extensions of fuzzy sets. This paper shows that ignorance and contradiction cannot be viewed as additional truth-values nor processed in a truthf...
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