TASK DEFINITION: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
PROBLEM: 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.

SOLUTION: Social Science

PROBLEM: This man's works have inspired Derek Walcott's The Isle is Full of Noises and Tom Paulin's The Riot Act. He discussed the pain of having one's hair forcibly shorn in a play about the daughter of Salmoneus, Tyro Keiromene. The work Ichneutai, or The Tracking Satyrs, is a rare example of a satyr play by this tragedian. Anthony Hecht mentioned a girl who had read him in a good translation in his "Dover Bitch," but he's better known for a work in which Eurydice kills herself after the deaths of her son and niece and another in which a Theban queen marries her own son. FTP, name this Greek dramatist who wrote Antigone and Oedipus Rex.

SOLUTION: Literature

PROBLEM: One variety of this mineral occurs naturally from the metamorphism of dolomitic limestone. That variety of this mineral reacts with quartz to form enstatite. This mineral differs from quartz in that it cannot form from magmas rich in silica. Bina and Wood attribute a sharp increase in seismic velocity at 400km to this material's transformation to its spinel-structure. This mineral undergoes weathering most easily according to the Goldich dissolution series. Its iron-rich version is known as fayalite. These minerals form the majority of the Earth's upper mantle. It is located above pyroxene on the discontinuous branch of Bowen's reaction series, making it the highest-ranking member. For 10 points, name this magnesium-iron-silicate whose green gem form is called peridot.

SOLUTION:
Science