Symmetry and Paradox

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12 Citations (Scopus)


The 'no'-'no' paradox (so-called by Sorensen) consists of a pair of propositions each of which says of the other that it is false. It is not immediately paradoxical, since it has a solution in which one proposition is true, the other false. However, that is itself paradoxical, since there is no clear ground for determining which is which. The two propositions should have the same truth-value. The paper shows how a proposal by the medieval thinker Thomas Bradwardine solves not only the Liar paradox, but also symmetric paradoxes like the 'no'-'no', the descending 'no'-'no', and the Truth-teller paradoxes.

Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalHistory and Philosophy of Logic
Issue number4
Publication statusPublished - Nov 2006


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