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'fragments/reports', 'Nature and Meaning of Numbers' and 'Second Commentary on 'Isagoge''
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9 ideas
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / a. Numbers
9823
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Numbers are free creations of the human mind, to understand differences [Dedekind]
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / c. Priority of numbers
10090
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Dedekind defined the integers, rationals and reals in terms of just the natural numbers [Dedekind, by George/Velleman]
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7524
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Order, not quantity, is central to defining numbers [Dedekind, by Monk]
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17452
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Ordinals can define cardinals, as the smallest ordinal that maps the set [Dedekind, by Heck]
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / e. Ordinal numbers
14131
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Dedekind's ordinals are just members of any progression whatever [Dedekind, by Russell]
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / i. Reals from cuts
14437
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Dedekind's axiom that his Cut must be filled has the advantages of theft over honest toil [Dedekind, by Russell]
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18094
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Dedekind says each cut matches a real; logicists say the cuts are the reals [Dedekind, by Bostock]
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6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure
9824
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In counting we see the human ability to relate, correspond and represent [Dedekind]
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6. Mathematics / A. Nature of Mathematics / 5. The Infinite / b. Mark of the infinite
9826
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A system S is said to be infinite when it is similar to a proper part of itself [Dedekind]
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