The truth of the cogito is beyond doubt (indubitable).
Descartes notes that the cogito also has the special property of being clear and distinct (In this
first item of knowledge there is simply a clear and distinct perception of what I am ass
Epistemology is primarily concerned with propositional knowledge, what it is to know that P (where P is
some statement or proposition) propositions have truth values, and are the objects of propositional
Example of proposit
Descartes also notes that even those things that we think we know through reason alone are
not immune to doubt.
We cannot be sure that they are true rather than just seem to be true.
The Evil Demon Argument (attack on a priori knowledge):