Ideas from 'Substitutional Classes and Relations' by Bertrand Russell [1906], by Theme Structure
[found in 'Essays in Analysis' by Russell,Bertrand (ed/tr Lackey,Douglas) [George Braziller 1973,0807606995]].
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2. Reason / D. Definition / 7. Contextual Definition
21560

Any linguistic expression may lack meaning when taken out of context

2. Reason / F. Fallacies / 8. Category Mistake / a. Category mistakes
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'The number one is bald' or 'the number one is fond of cream cheese' are meaningless

4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / p. Axiom of Reducibility
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Axiom of Reducibility: there is always a function of the lowest possible order in a given level [Bostock]

8. Modes of Existence / A. Relations / 1. Nature of Relations
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There is no complexity without relations, so no propositions, and no truth
