23 ideas
8092 | Logic was merely a branch of rhetoric until the scientific 17th century [Devlin] |
17311 | Real definitions don't just single out a thing; they must also explain its essence [Koslicki] |
8081 | 'No councillors are bankers' and 'All bankers are athletes' implies 'Some athletes are not councillors' [Devlin] |
8085 | Modern propositional inference replaces Aristotle's 19 syllogisms with modus ponens [Devlin] |
8086 | Predicate logic retains the axioms of propositional logic [Devlin] |
8091 | Situation theory is logic that takes account of context [Devlin] |
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] |
8082 | Where a conditional is purely formal, an implication implies a link between premise and conclusion [Devlin] |
8072 | Sentences of apparent identical form can have different contextual meanings [Devlin] |
8075 | Space and time are atomic in the arrow, and divisible in the tortoise [Devlin] |
17312 | It is more explanatory if you show how a number is constructed from basic entities and relations [Koslicki] |
17314 | The relata of grounding are propositions or facts, but for dependence it is objects and their features [Koslicki] |
16643 | Accidents always remain suited to a subject [Bonaventura] |
17313 | Modern views want essences just to individuate things across worlds and times [Koslicki] |
17309 | For Fine, essences are propositions true because of identity, so they are just real definitions [Koslicki] |
17315 | We need a less propositional view of essence, and so must distinguish it clearly from real definitions [Koslicki] |
16696 | Successive things reduce to permanent things [Bonaventura] |
8088 | People still say the Hopi have no time concepts, despite Whorf's later denial [Devlin] |
17317 | A good explanation captures the real-world dependence among the phenomena [Koslicki] |
17316 | We can abstract to a dependent entity by blocking out features of its bearer [Koslicki] |
8073 | How do we parse 'time flies like an arrow' and 'fruit flies like an apple'? [Devlin] |
8076 | The distinction between sentences and abstract propositions is crucial in logic [Devlin] |