Combining Texts
Ideas for
'The Runabout Inference Ticket', 'Mental Models' and 'Prior Analytics'
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9 ideas
5. Theory of Logic / B. Logical Consequence / 3. Deductive Consequence |-
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11148
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Deduction is when we suppose one thing, and another necessarily follows [Aristotle]
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5. Theory of Logic / E. Structures of Logic / 1. Logical Form
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18896
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Aristotle places terms at opposite ends, joined by a quantified copula [Aristotle, by Sommers]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
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11021
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Prior rejected accounts of logical connectives by inference pattern, with 'tonk' his absurd example [Prior,AN, by Read]
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13836
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Maybe introducing or defining logical connectives by rules of inference leads to absurdity [Prior,AN, by Hacking]
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17896
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We need to know the meaning of 'and', prior to its role in reasoning [Prior,AN, by Belnap]
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17898
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Prior's 'tonk' is inconsistent, since it allows the non-conservative inference A |- B [Belnap on Prior,AN]
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5. Theory of Logic / E. Structures of Logic / 7. Predicates in Logic
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3300
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Aristotle's logic is based on the subject/predicate distinction, which leads him to substances and properties [Aristotle, by Benardete,JA]
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5. Theory of Logic / G. Quantification / 1. Quantification
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11149
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Affirming/denying sentences are universal, particular, or indeterminate [Aristotle]
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5. Theory of Logic / G. Quantification / 3. Objectual Quantification
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8079
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Aristotelian logic has two quantifiers of the subject ('all' and 'some') [Aristotle, by Devlin]
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