13 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] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |
| 21332 | We don't get a love of 'order' from nature - which is thoroughly chaotic [Mill] |
| 21333 | Evil comes from good just as often as good comes from evil [Mill] |
| 21335 | Belief that an afterlife is required for justice is an admission that this life is very unjust [Mill] |
| 21334 | No necessity ties an omnipotent Creator, so he evidently wills human misery [Mill] |
| 21329 | Nature dispenses cruelty with no concern for either mercy or justice [Mill] |
| 21328 | Killing is a human crime, but nature kills everyone, and often with great tortures [Mill] |
| 21330 | Nature makes childbirth a miserable experience, often leading to the death of the mother [Mill] |
| 21331 | Hurricanes, locusts, floods and blight can starve a million people to death [Mill] |