Combining Philosophers

Ideas for Hermarchus, Franklin Perkins and Bertrand Russell

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15 ideas

2. Reason / A. Nature of Reason / 6. Coherence
17638 If one proposition is deduced from another, they are more certain together than alone [Russell]
2. Reason / B. Laws of Thought / 1. Laws of Thought
5396 Three Laws of Thought: identity, contradiction, and excluded middle [Russell]
5405 The law of contradiction is not a 'law of thought', but a belief about things [Russell]
2. Reason / B. Laws of Thought / 3. Non-Contradiction
17632 Non-contradiction was learned from instances, and then found to be indubitable [Russell]
2. Reason / B. Laws of Thought / 6. Ockham's Razor
6106 Reducing entities and premisses makes error less likely [Russell]
2. Reason / D. Definition / 3. Types of Definition
14426 A definition by 'extension' enumerates items, and one by 'intension' gives a defining property [Russell]
2. Reason / D. Definition / 7. Contextual Definition
21560 Any linguistic expression may lack meaning when taken out of context [Russell]
2. Reason / D. Definition / 11. Ostensive Definition
21551 Empirical words need ostensive definition, which makes them egocentric [Russell]
2. Reason / D. Definition / 13. Against Definition
14115 Definition by analysis into constituents is useless, because it neglects the whole [Russell]
14159 In mathematics definitions are superfluous, as they name classes, and it all reduces to primitives [Russell]
2. Reason / F. Fallacies / 2. Infinite Regress
14148 Infinite regresses have propositions made of propositions etc, with the key term reappearing [Russell]
2. Reason / F. Fallacies / 8. Category Mistake / a. Category mistakes
18002 As well as a truth value, propositions have a range of significance for their variables [Russell]
21561 'The number one is bald' or 'the number one is fond of cream cheese' are meaningless [Russell]
8468 The sentence 'procrastination drinks quadruplicity' is meaningless, rather than false [Russell, by Orenstein]
6437 The theory of types makes 'Socrates and killing are two' illegitimate [Russell]