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.

This writer distinguished between learning through description and learning through acquaintance in a work that introduces the Cartesian method of doubt with the example of a table. This man attempted to solve the problem of negative existentials in a work that claimed that "Aristotle" was not a name but a description. That work by this man also criticized Meinong and rejects the distinction between propositions and truth values proposed in (*) Frege's On Sense and Reference. This author of The Problems of Philosophy and "On Denoting" introduced his namesake paradox in naive set theory in a work that attempted to explain mathematics with axiomatic logic. For 10 points, name this British philosopher who co-wrote Principia Mathematica with Alfred North Whitehead.
Social Science

Halogen addition to them creates a mixture of a 1-2 and 1-4 addition product. One preparation of them involves butane undergoing thermal dehydration. Another synthesis of the conjugated variety of this chemical group involves elimination of unsaturated alcohols and alkyl halides. They include a number of useful reagents, including ones named for Chan, Dane, Brassard, Rawal, and Danishefsky. In addition to the conjugated variety, they also occur in isolated and cumulated varieties. Conjugation energy guarantees that the conjugated form is the most stable. For ten points, what is this organic functional group whose 1,3 variety are a principal reactant in the Diels-Alder reaction, and which is characterized by a pair of double bonds.
Science

The protagonist of this novel invokes God by saying "Tixo, tixo, forsake me not." That protagonist meets a woman pregnant with his son's child when he visits Shanty Town in this novel, which opens with the description of a (*) "lovely road" to Ixopo. Characters who help the protagonist include the landlady Mrs. Lithebe and the priest Theophilus Msimangu. The protagonist of this novel tries to find his sick sister Gertrude in Johannesburg, where he discovers that his son Absalom has murdered Arthur Jarvis. For 10 points, name this novel about Stephen Kumalo by Alan Paton.

Literature