Mediaeval Logic and Philosophy (Popularity: ): Resource maintained by Paul Vincent Spade at Indiana University. The Summulae of John Buridan (Popularity: ): A critical introduction by Gyula Klima. Medieval Theories of Modality (Popularity: ): Article at the Stanford Encyclopaedia of Philosophy. Scholastic Logic (Popularity: ): Chapter Two of Joseph Perrier's "The Revival of Scholastic Philosophy in the Nineteenth Century" (1909). Scholasticism (Popularity: ): Online text by Joseph Rickaby (1908). Aristotle's Reform of Paideia (Popularity: ): Article by Evelyn Barker, arguing that the principal aim of Aristotle's Organon was to reform the contemporary paedagogical role of dialectic. Square of Opposition (Popularity: ): Article in the Stanford Encyclopaedia of Philosophy, by Terence Parsons. Logic (Popularity: ): Entry in the Catholic Encyclopaedia (1917), dominated by a historical survey from Indian and Pre-Aristotelian philosophy to the Logic of John Stuart Mill. Aristotle's Logic (Popularity: ): Introductory article by Garth Kemerling. Peter of Spain (Petrus Hispanus) (Popularity: ): Life and work of 13th century logician and author of the Tractatus; from the Stanford Encyclopedia by Joke Spruyt. Alan Turing (Popularity: ): Encyclopedia biography from Wikipedia. Alan Turing Papers (Popularity: ): Collection record of Turings papers at Kings College, Cambridge.