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Single Idea 14969

[catalogued under 5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / a. The Liar paradox]

Full Idea

An example of the Strengthened Liar is the following statement SL: 'Either SL is neither-true-nor-false or it is not true'. This raises a serious problem for any theory that assesses the paradoxes to be neither true nor false.

Gist of Idea

Strengthened Liar: either this sentence is neither-true-nor-false, or it is not true


Anil Gupta (Truth [2001], 5.4.2)

Book Reference

'Blackwell Guide to Philosophical Logic', ed/tr. Goble,Lou [Blackwell 2001], p.109

A Reaction

If the sentence is either true or false it reduces to the ordinary Liar. If it is neither true nor false, then it is true.