Task: Text Categorization
Input (English): Descartes proposed a thought experiment in which all one has of this is due to a demon, and Quine's argument that no statement can be truly analytic allows him to support a doctrine holding that certainty in this is impossible, called fallibilism. The Gettier problem questions the traditional formulation that a statement's truth and its belief implies that it is this, while another philosopher discussed how this can be derived either through statements about "relations of ideas" or through "matters of fact" in Hume's fork. For 10 points, identify this concept defined as the intersection of what is true and believed, the theory of which is called epistemology.
Output (English): Social Science