Combining Philosophers
Ideas for David J.Chalmers, A.J. Ayer and Timothy McGrew
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17 ideas
19. Language / A. Nature of Meaning / 5. Meaning as Verification
5181
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A sentence is factually significant to someone if they know how to verify its proposition [Ayer]
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5184
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Factual propositions imply (in conjunction with a few other premises) possible experiences [Ayer]
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5186
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Tautologies and empirical hypotheses form the entire class of significant propositions [Ayer]
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5164
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A statement is meaningful if observation statements can be deduced from it [Ayer]
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5165
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Directly verifiable statements must entail at least one new observation statement [Ayer]
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5166
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The principle of verification is not an empirical hypothesis, but a definition [Ayer]
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19. Language / C. Assigning Meanings / 10. Two-Dimensional Semantics
14708
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Rationalist 2D semantics posits necessary relations between meaning, apriority, and possibility [Chalmers, by Schroeter]
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13958
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The 'primary intension' is non-empirical, and fixes extensions based on the actual-world reference [Chalmers]
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2399
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Meaning has split into primary ("watery stuff"), and secondary counterfactual meaning ("H2O") [Chalmers]
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13959
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The 'secondary intension' is determined by rigidifying (as H2O) the 'water' picked out in the actual world [Chalmers]
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13957
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Primary and secondary intensions are the a priori (actual) and a posteriori (counterfactual) aspects of meaning [Chalmers]
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13961
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We have 'primary' truth-conditions for the actual world, and derived 'secondary' ones for counterfactual worlds [Chalmers]
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14739
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'Water' is two-dimensionally inconstant, with different intensions in different worlds [Chalmers, by Sider]
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19. Language / D. Propositions / 1. Propositions
5162
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Sentences only express propositions if they are meaningful; otherwise they are 'statements' [Ayer]
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13962
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Two-dimensional semantics gives a 'primary' and 'secondary' proposition for each statement [Chalmers]
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19. Language / D. Propositions / 6. Propositions Critique
2610
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Talk of propositions is just shorthand for talking about equivalent sentences [Ayer]
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19. Language / E. Analyticity / 2. Analytic Truths
13960
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In two-dimensional semantics we have two aspects to truth in virtue of meaning [Chalmers]
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