The Many Valued and Nonmonotonic Turn in Logic Zoltan; Pelyvas one not only of nature

one not only of nature but of technology

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On the other

and public policy

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The Many Valued and Nonmonotonic Turn in Logic Zoltan; Pelyvas one not only of natureThe present volume of the Handbook of the History of Logic brings together two of the most important developments in 20th century non classical logic. These are many valuedness and non monotonicity. On the one approach, in deference to vagueness, temporal or quantum indeterminacy or reference failure, sentences that are classically non bivalent are allowed as inputs and outputs to consequence relations. Many valued, dialetheic, fuzzy and quantum