Combining Philosophers
Ideas for Empedocles, Gideon Rosen and Gregory Vlastos
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8 ideas
18. Thought / A. Modes of Thought / 1. Thought
1524
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For Empedocles thinking is almost identical to perception [Empedocles, by Theophrastus]
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18. Thought / E. Abstraction / 2. Abstracta by Selection
8917
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The Way of Abstraction used to say an abstraction is an idea that was formed by abstracting [Rosen]
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18. Thought / E. Abstraction / 5. Abstracta by Negation
8912
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Nowadays abstractions are defined as non-spatial, causally inert things [Rosen]
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8913
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Chess may be abstract, but it has existed in specific space and time [Rosen]
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8914
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Sets are said to be abstract and non-spatial, but a set of books can be on a shelf [Rosen]
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18. Thought / E. Abstraction / 6. Abstracta by Conflation
8916
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Conflating abstractions with either sets or universals is a big claim, needing a big defence [Rosen]
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18. Thought / E. Abstraction / 7. Abstracta by Equivalence
8918
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Functional terms can pick out abstractions by asserting an equivalence relation [Rosen]
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8919
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Abstraction by equivalence relationships might prove that a train is an abstract entity [Rosen]
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