(1) A KNOWLEDGE of the techniques of symbolic logic is now almost essential for an appreciation of modern philosophical thought, with its increasing dependence upon purely formal studies such as ...

(4) Thought and Things, or Genetic Logic. By James Mark Baldwin. Vol. i. Functional Logic, or Genetic Theory of Knowledge. Pp. xiv + 273. (London: Swan Sonnenschein ...

In World War II’s most desperate months, the mathematician Alan Turing assembled a team of codebreakers to decrypt intercepted Nazi messages. He tested applicants with chess puzzles, hired a ...