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The Logical Must by Penelope Maddy – 9780199391752

ISBN-13: 9780199391752, 978-0199391752. Author(s): Penelope Maddy. In his early work Tractatus Logico-Philosophicus, Wittgenstein also links the logical structure of representation with the structure of the world, but he includes one key unnaturalistic assumption: that the sense of our representations must be given prior to-independently of-facts about how the world is.

Realism in Mathematics by Penelope Maddy – 9780198240358

ISBN-13: 9780198240358, 978-0198240358. Realism in Mathematics Author(s): Penelope Maddy. When engaged in mathematics, most people tend to think of themselves as scientists investigating the features of real mathematical things, and the wildly successful application of mathematics in the physical sciences reinforces this picture of mathematics as an objective study.