Incapable of being corrected; hence, a putative criterion of certainty. An incorrigible proposition is one about which it is impossible to be mistaken, such as (perhaps) "I am now in pain." Whether any human knowledge is actually incorrigible is one of the central questions of epistemology.

    Recommended Reading: Ludwig Wittgenstein, On Certainty (Harpercollins, 1986) {at Amazon.com}; Certainty, ed. by Jonathan Westphal (Hackett, 1995) {at Amazon.com}; and William P. Alston, Epistemic Justification: Essays in the Theory of Knowledge (Cornell, 1993) {at Amazon.com