8 ideas
21552 | Common speech is vague; its vocabulary and syntax must be modified, for precision [Russell] |
21551 | Empirical words need ostensive definition, which makes them egocentric [Russell] |
18812 | Split out the logical vocabulary, make an assignment to the rest. It's logical if premises and conclusion match [Tarski, by Rumfitt] |
13344 | X follows from sentences K iff every model of K also models X [Tarski] |
13343 | A 'model' is a sequence of objects which satisfies a complete set of sentential functions [Tarski] |
21550 | Science reduces indexicals to a minimum, but they can never be eliminated from empirical matters [Russell] |
13345 | Sentences are 'analytical' if every sequence of objects models them [Tarski] |
15998 | Perfect love is not in spite of imperfections; the imperfections must be loved as well [Kierkegaard] |