Combining Texts

Ideas for 'Material Beings', 'Characteristics' and 'Truth by Convention'

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8 ideas

5. Theory of Logic / C. Ontology of Logic / 3. If-Thenism

10064

Quine quickly dismisses If-thenism [Quine, by Musgrave]

5. Theory of Logic / C. Ontology of Logic / 4. Logic by Convention

20296

Logic needs general conventions, but that needs logic to apply them to individual cases [Quine, by Rey]

8998	Claims that logic and mathematics are conventional are either empty, uninteresting, or false [Quine]

8999	Logic isn't conventional, because logic is needed to infer logic from conventions [Quine]

9000	If a convention cannot be communicated until after its adoption, what is its role? [Quine]

5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle

17587

The 'Law' of Excluded Middle needs all propositions to be definitely true or definitely false [Inwagen]

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

17558

Variables are just like pronouns; syntactic explanations get muddled over dummy letters [Inwagen]

5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / b. The Heap paradox ('Sorites')

17583

There are no heaps [Inwagen]