Combining Texts

Ideas for 'Wiener Logik', 'Philosophy of Logic' and '64: Gryllus - on Rationality in Animals'

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3 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

18954

Before the late 19th century logic was trivialised by not dealing with relations [Putnam]

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

22275

Logic gives us the necessary rules which show us how we ought to think [Kant]

5. Theory of Logic / A. Overview of Logic / 5. First-Order Logic

18956

Asserting first-order validity implicitly involves second-order reference to classes [Putnam]