Combining Philosophers
Ideas for Charles Darwin, Bertrand Russell and Tim Button
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11 ideas
8. Modes of Existence / A. Relations / 1. Nature of Relations
21341
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Philosophers of logic and maths insisted that a vocabulary of relations was essential [Russell, by Heil]
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21534
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The only thing we can say about relations is that they relate [Russell]
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21540
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Relational propositions seem to be 'about' their terms, rather than about the relation [Russell]
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21562
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There is no complexity without relations, so no propositions, and no truth [Russell]
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5371
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Because we depend on correspondence, we know relations better than we know the items that relate [Russell]
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5407
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That Edinburgh is north of London is a non-mental fact, so relations are independent universals [Russell]
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21576
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With asymmetrical relations (before/after) the reduction to properties is impossible [Russell]
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8. Modes of Existence / A. Relations / 4. Formal Relations / a. Types of relation
14430
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If a relation is symmetrical and transitive, it has to be reflexive [Russell]
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10586
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'Reflexiveness' holds between a term and itself, and cannot be inferred from symmetry and transitiveness [Russell]
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14432
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'Asymmetry' is incompatible with its converse; a is husband of b, so b can't be husband of a [Russell]
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8. Modes of Existence / A. Relations / 4. Formal Relations / b. Equivalence relation
10585
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Symmetrical and transitive relations are formally like equality [Russell]
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