more from Graham Priest

Single Idea 13371

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

Full Idea

In the family of the Liar is the Knower Paradox, where φ(x) is 'x is known to be true', and there is a set of known things, Kn. By knowing a sentence is not in the known sentences, you know its truth.

Gist of Idea

If you know that a sentence is not one of the known sentences, you know its truth

Source

Graham Priest (The Structure of Paradoxes of Self-Reference [1994], 4)

Book Reference

-: 'Mind' [-], p.30


A Reaction

[mostly my wording]