Combining Texts

All the ideas for 'Changes in Events and Changes in Things', 'Criterion of Validity in Reasoning' and 'Intro to 2nd ed of Principia Mathematica'

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7 ideas

2. Reason / A. Nature of Reason / 4. Aims of Reason

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I reason in order to avoid disappointment and surprise [Peirce]

3. Truth / H. Deflationary Truth / 1. Redundant Truth

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That a judgement is true and that we judge it true are quite different things [Peirce]

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

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Only study logic if you think your own reasoning is deficient [Peirce]

7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms

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Given all true atomic propositions, in theory every other truth can thereby be deduced [Russell]

7. Existence / D. Theories of Reality / 8. Facts / a. Facts

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Facts are hard unmoved things, unaffected by what people may think of them [Peirce]

7. Existence / D. Theories of Reality / 8. Facts / b. Types of fact

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That Queen Anne is dead is a 'general fact', not a fact about Queen Anne [Prior,AN]

27. Natural Reality / D. Time / 2. Passage of Time / e. Tensed (A) series

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'Thank goodness that's over' is not like 'thank goodness that happened on Friday' [Prior,AN]