Combining Texts
Ideas for
'Elements of Mind', 'Is Mathematics purely Linguistic?' and 'Grundlagen der Arithmetik (Foundations)'
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13 ideas
12. Knowledge Sources / A. A Priori Knowledge / 1. Nature of the A Priori
9158
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For Frege a priori knowledge derives from general principles, so numbers can't be primitive [Frege]
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12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence
8657
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Mathematicians just accept self-evidence, whether it is logical or intuitive [Frege]
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12. Knowledge Sources / A. A Priori Knowledge / 4. A Priori as Necessities
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An a priori truth is one derived from general laws which do not require proof [Frege]
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16889
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A truth is a priori if it can be proved entirely from general unproven laws [Frege]
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12. Knowledge Sources / A. A Priori Knowledge / 8. A Priori as Analytic
2514
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Frege tried to explain synthetic a priori truths by expanding the concept of analyticity [Frege, by Katz]
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12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
4108
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Phenol-thio-urea tastes bitter to three-quarters of people, but to the rest it is tasteless, so which is it? [Crane]
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12. Knowledge Sources / B. Perception / 4. Sense Data / a. Sense-data theory
4105
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The traditional supports for the sense datum theory were seeing double and specks before one's eyes [Crane]
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4104
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One can taste that the wine is sour, and one can also taste the sourness of the wine [Crane]
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12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
4102
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The problems of perception disappear if it is a relation to an intentional state, not to an object or sense datum [Crane]
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4101
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If we smell something we are aware of the smell separately, but we don't perceive a 'look' when we see [Crane]
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12. Knowledge Sources / B. Perception / 6. Inference in Perception
4109
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If perception is much richer than our powers of description, this suggests that it is non-conceptual [Crane]
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12. Knowledge Sources / B. Perception / 8. Adverbial Theory
4103
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The adverbial theory of perceptions says it is the experiences which have properties, not the objects [Crane]
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12. Knowledge Sources / E. Direct Knowledge / 2. Intuition
16900
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Intuitions cannot be communicated [Frege, by Burge]
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