Originally published: 2019/11/04

Note: The picture of Harry M. Scheffer is actually of L.E.J. Brouwer. Whoops!

Sources paraphrased, quoted, and referenced: Full text of Tractatus Logico-Philosophicus: http://daxoliver.com/tractatus/ Sparknotes, http://www.sparknotes.com/philosophy/... [All] Ray Monk, "Ludwig Wittgenstein: The Duty of Genius" (Penguin Books 1990) [Biography] Greg Barker: https://www.cs.sfu.ca/~ggbaker/zju/ma... [Logic] Wikipedia: https://en.wikipedia.org/wiki/Logical... [1-2.01] Daniel Bonevac, "Russell's Logical Atomism": • Russell's Logical Atomism [1-2.01] Daniel Bonevac, "Wittgenstein's Tractatus": • Wittgenstein's Tractatus [1-2.01, 2.02-2.06, 2.1-3.1] William Child, "Wittgenstein" (Routledge 2011) [2.02-2.06, 2.1-3.1, 3.2-3.5, 6.4-7] Avrum Stroll, "Twentieth-Century Analytic Philosophy" (Columbia University Press 2000) [3.2-3.5] Daniel Bonevac, "Frege": • Analytic Philosophy: Frege [3.2-3.5] Daniel Bonevac, "Frege on Thought": • Frege on Sense and Reference [3.2-3.5] Daniel Bonevac, "Russell": • Russell [3.2-3.5] Daniel Bonevac, "Russell on Denoting": • Russell on Denoting [3.2-3.5] Daniel Bonevac, "Russell on Denoting, Part 2": • Russell on Denoting, Part 2 [3.2-3.5] Michael Kremer, “The Whole Meaning of a Book of Nonsense: Introducing Wittgenstein's Tractatus," Oxford Handbook of the History of Analytic Philosophy, ed. Michael Beaney (Oxford University Press 2013) [3.2-3.5, 5.2-5.46, 6.3, 6.4-7] Kai F. Wehmeier, "The Logic of Wittgenstein's Tractatus": • 動画 [5.47-5.54] Ray Monk, "How to Read Wittgenstein" (W. W. Norton Company 2005) [6-6.2]