Combining Philosophers
Ideas for Marga Reimer, David Robb and David Bostock
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10 ideas
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
18156
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Modern axioms of geometry do not need the real numbers [Bostock]
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6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / d. Peano arithmetic
18097
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The Peano Axioms describe a unique structure [Bostock]
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6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / f. Mathematical induction
13358
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Ordinary or mathematical induction assumes for the first, then always for the next, and hence for all [Bostock]
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13359
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Complete induction assumes for all numbers less than n, then also for n, and hence for all numbers [Bostock]
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6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / d. Hume's Principle
18148
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Hume's Principle is a definition with existential claims, and won't explain numbers [Bostock]
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18145
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Many things will satisfy Hume's Principle, so there are many interpretations of it [Bostock]
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18149
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There are many criteria for the identity of numbers [Bostock]
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6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / e. Caesar problem
18143
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Frege makes numbers sets to solve the Caesar problem, but maybe Caesar is a set! [Bostock]
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6. Mathematics / B. Foundations for Mathematics / 7. Mathematical Structuralism / e. Structuralism critique
18116
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Numbers can't be positions, if nothing decides what position a given number has [Bostock]
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18117
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Structuralism falsely assumes relations to other numbers are numbers' only properties [Bostock]
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