Combining Texts
Ideas for
'Writing the Book of the World', 'Reference and Definite Descriptions' and 'Semantic Relationism'
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17 ideas
5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic
14980
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There is a real issue over what is the 'correct' logic [Sider]
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15000
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'It is raining' and 'it is not raining' can't be legislated, so we can't legislate 'p or ¬p' [Sider]
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5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
15020
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Classical logic is good for mathematics and science, but less good for natural language [Sider]
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5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
15029
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Modal accounts of logical consequence are simple necessity, or essential use of logical words [Sider]
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5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
15019
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Define logical constants by role in proofs, or as fixed in meaning, or as topic-neutral [Sider]
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5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic
15590
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It seemed that Frege gave the syntax for variables, and Tarski the semantics, and that was that [Fine,K]
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15591
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In separate expressions variables seem identical in role, but in the same expression they aren't [Fine,K]
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15595
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The 'algebraic' account of variables reduces quantification to the algebra of its component parts [Fine,K]
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15594
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'Instantial' accounts of variables say we grasp arbitrary instances from their use in quantification [Fine,K]
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15592
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The usual Tarskian interpretation of variables is to specify their range of values [Fine,K]
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15593
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Variables can be viewed as special terms - functions taking assignments into individuals [Fine,K]
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5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
15599
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Cicero/Cicero and Cicero/Tully may differ in relationship, despite being semantically the same [Fine,K]
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5. Theory of Logic / F. Referring in Logic / 2. Descriptions / a. Descriptions
7760
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Russell only uses descriptions attributively, and Strawson only referentially [Donnellan, by Lycan]
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5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions
5811
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A definite description can have a non-referential use [Donnellan]
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5812
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Definite descriptions are 'attributive' if they say something about x, and 'referential' if they pick x out [Donnellan]
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5814
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'The x is F' only presumes that x exists; it does not actually entail the existence [Donnellan]
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5. Theory of Logic / H. Proof Systems / 4. Natural Deduction
15001
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'Tonk' is supposed to follow the elimination and introduction rules, but it can't be so interpreted [Sider]
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