Combining Texts

All the ideas for 'The Poetics', 'That Politics may be reduced to a Science' and 'Goodbye Descartes'

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18 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]

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

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

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

10. Modality / B. Possibility / 1. Possibility

22518

The actual must be possible, because it occurred [Aristotle]

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]

21. Aesthetics / B. Nature of Art / 8. The Arts / b. Literature

16566

Poetry is more philosophic than history, as it concerns universals, not particulars [Aristotle]

23. Ethics / C. Virtue Theory / 4. External Goods / d. Friendship

21093

Friendship without community spirit misses out on the main part of virtue [Hume]

24. Political Theory / B. Nature of a State / 3. Constitutions

21091

It would be absurd if even a free constitution did not impose restraints, for the public good [Hume]

24. Political Theory / C. Ruling a State / 2. Leaders / d. Elites

21092

Nobility either share in the power of the whole, or they compose the power of the whole [Hume]