Combining Texts

All the ideas for 'The Nature of Things', 'Events' and 'Goodbye Descartes'

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20 ideas

1. Philosophy / B. History of Ideas / 5. Later European Thought

8092	Logic was merely a branch of rhetoric until the scientific 17th century [Devlin]

4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic

8081	'No councillors are bankers' and 'All bankers are athletes' implies 'Some athletes are not councillors' [Devlin]

4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic

8085	Modern propositional inference replaces Aristotle's 19 syllogisms with modus ponens [Devlin]

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL

8086	Predicate logic retains the axioms of propositional logic [Devlin]

4. Formal Logic / F. Set Theory ST / 7. Natural Sets

9406	A class is natural when everybody can spot further members of it [Quinton]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

8091	Situation theory is logic that takes account of context [Devlin]

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

8089	Montague's intensional logic incorporated the notion of meaning [Devlin]

8087	Golden ages: 1900-1960 for pure logic, and 1950-1985 for applied logic [Devlin]

5. Theory of Logic / B. Logical Consequence / 7. Strict Implication

8082	Where a conditional is purely formal, an implication implies a link between premise and conclusion [Devlin]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

8072	Sentences of apparent identical form can have different contextual meanings [Devlin]

5. Theory of Logic / L. Paradox / 4. Paradoxes in Logic / a. Achilles paradox

8075	Space and time are atomic in the arrow, and divisible in the tortoise [Devlin]

7. Existence / B. Change in Existence / 4. Events / c. Reduction of events

9413	An event is a change in or to an object [Lombard, by Mumford]

7. Existence / E. Categories / 5. Category Anti-Realism

15730

Extreme nominalists say all classification is arbitrary convention [Quinton]

8. Modes of Existence / B. Properties / 5. Natural Properties

15728

The naturalness of a class depends as much on the observers as on the objects [Quinton]

9407	Properties imply natural classes which can be picked out by everybody [Quinton]

8. Modes of Existence / D. Universals / 4. Uninstantiated Universals

15729

Uninstantiated properties must be defined using the instantiated ones [Quinton]

9. Objects / A. Existence of Objects / 5. Individuation / b. Individuation by properties

8520	An individual is a union of a group of qualities and a position [Quinton, by Campbell,K]

13. Knowledge Criteria / E. Relativism / 5. Language Relativism

8088	People still say the Hopi have no time concepts, despite Whorf's later denial [Devlin]

19. Language / C. Assigning Meanings / 1. Syntax

8073	How do we parse 'time flies like an arrow' and 'fruit flies like an apple'? [Devlin]

19. Language / D. Propositions / 2. Abstract Propositions / a. Propositions as sense

8076	The distinction between sentences and abstract propositions is crucial in logic [Devlin]