Combining Texts

All the ideas for 'Propositions', 'Symbolic Reasoning' and 'Structure and Nature'

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8 ideas

4. Formal Logic / F. Set Theory ST / 3. Types of Set / b. Empty (Null) Set
21548 The null class is the class with all the non-existents as its members [MacColl, by Lackey]
5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
9455 Maybe proper names have the content of fixing a thing's category [Bealer]
5. Theory of Logic / F. Referring in Logic / 2. Descriptions / b. Definite descriptions
9454 The four leading theories of definite descriptions are Frege's, Russell's, Evans's, and Prior's [Bealer]
6. Mathematics / B. Foundations for Mathematics / 7. Mathematical Structuralism / a. Structuralism
10242 I apply structuralism to concrete and abstract objects indiscriminately [Quine]
7. Existence / D. Theories of Reality / 6. Physicalism
10243 My ontology is quarks etc., classes of such things, classes of such classes etc. [Quine]
19. Language / D. Propositions / 1. Propositions
9453 Sentences saying the same with the same rigid designators may still express different propositions [Bealer]
9452 Propositions might be reduced to functions (worlds to truth values), or ordered sets of properties and relations [Bealer]
19. Language / D. Propositions / 2. Abstract Propositions / a. Propositions as sense
9451 Modal logic and brain science have reaffirmed traditional belief in propositions [Bealer]