Combining Texts
Ideas for
'The Evolution of Logic', 'Critique of Pure Reason' and 'Abstract Objects: a Case Study'
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21 ideas
6. Mathematics / A. Nature of Mathematics / 2. Geometry
8739
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Geometry studies the Euclidean space that dictates how we perceive things [Kant, by Shapiro]
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8740
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Geometry would just be an idle game without its connection to our intuition [Kant]
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16899
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Geometrical truth comes from a general schema abstracted from a particular object [Kant, by Burge]
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / e. Ordinal numbers
13459
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The less-than relation < well-orders, and partially orders, and totally orders the ordinal numbers [Hart,WD]
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13491
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The axiom of infinity with separation gives a least limit ordinal ω [Hart,WD]
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13463
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There are at least as many infinite cardinals as transfinite ordinals (because they will map) [Hart,WD]
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13492
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Von Neumann's ordinals generalise into the transfinite better, because Zermelo's ω is a singleton [Hart,WD]
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers
13446
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19th century arithmetization of analysis isolated the real numbers from geometry [Hart,WD]
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6. Mathematics / A. Nature of Mathematics / 5. The Infinite / a. The Infinite
13509
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We can establish truths about infinite numbers by means of induction [Hart,WD]
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6. Mathematics / A. Nature of Mathematics / 5. The Infinite / c. Potential infinite
9632
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Kant only accepts potential infinity, not actual infinity [Kant, by Brown,JR]
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6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
3343
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Euclid's could be the only viable geometry, if rejection of the parallel line postulate doesn't lead to a contradiction [Benardete,JA on Kant]
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13474
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Euclid has a unique parallel, spherical geometry has none, and saddle geometry has several [Hart,WD]
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6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / a. Axioms for numbers
8737
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Kant suggested that arithmetic has no axioms [Kant, by Shapiro]
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5557
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Axioms ought to be synthetic a priori propositions [Kant]
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6. Mathematics / C. Sources of Mathematics / 2. Intuition of Mathematics
12421
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Kant's intuitions struggle to judge relevance, impossibility and exactness [Kitcher on Kant]
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6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / a. Mathematical empiricism
17617
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Maths is a priori, but without its relation to empirical objects it is meaningless [Kant]
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6. Mathematics / C. Sources of Mathematics / 6. Logicism / c. Neo-logicism
10580
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Mathematics is both necessary and a priori because it really consists of logical truths [Yablo]
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6. Mathematics / C. Sources of Mathematics / 6. Logicism / d. Logicism critique
12458
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Kant taught that mathematics is independent of logic, and cannot be grounded in it [Kant, by Hilbert]
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2795
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If 7+5=12 is analytic, then an infinity of other ways to reach 12 have to be analytic [Kant, by Dancy,J]
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13471
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Mathematics makes existence claims, but philosophers usually say those are never analytic [Hart,WD]
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6. Mathematics / C. Sources of Mathematics / 9. Fictional Mathematics
10579
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Putting numbers in quantifiable position (rather than many quantifiers) makes expression easier [Yablo]
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