Combining Philosophers
Ideas for Galen, David M. Armstrong and Karl Weierstrass
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3 ideas
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / a. Units
18392
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Classes have cardinalities, so their members must all be treated as units [Armstrong]
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6. Mathematics / A. Nature of Mathematics / 5. The Infinite / k. Infinitesimals
18086
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Weierstrass eliminated talk of infinitesimals [Weierstrass, by Kitcher]
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6. Mathematics / A. Nature of Mathematics / 5. The Infinite / l. Limits
18092
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Weierstrass made limits central, but the existence of limits still needed to be proved [Weierstrass, by Bostock]
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