6 ideas
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] |
13345 | Sentences are 'analytical' if every sequence of objects models them [Tarski] |
20662 | The biology of societies: kin selection, parenting, mating; status, territory, contracts [Wilson,EO] |
19384 | Space and time are the order of all possibilities, and don't just relate to what is actual [Leibniz] |