Scrabble?! INCORRIGIBILITY

Definitions of INCORRIGIBILITY in various dictionaries:

In philosophy, incorrigibility is a property of a philosophical proposition, which implies that it is necessarily true simply by virtue of being believed. A common example of such a proposition is René Descartes' "cogito ergo sum" ("I think, therefore I am"). Johnathan Harrison has argued that "incorrigible" may be the wrong term, since it seems to imply (by the dictionary definition) a sense that the beliefs cannot be changed, which isn't actually true. In Harrison's view, the incorrigibility of a proposition actually implies something about the nature of believingfor example, that one must exist in order to believerather than the nature of the proposition itself. For illustration, consider Descartes': I think, therefore I exist - Stated in incorrigible form, this could be: "That I believe that I exist implies that my belief is true". Harrison argues that a belief being true is really only incidental to the matter, that really what the cogito proves is that belief implies existence.