71 ideas
| 23269 | Philosophy must start from clearly observed facts [Galen] |
| 23248 | Early empiricists said reason was just a useless concept introduced by philosophers [Galen, by Frede,M] |
| 22285 | Impredicative definitions are circular, but fine for picking out, rather than creating something [Potter] |
| 22301 | The Identity Theory says a proposition is true if it coincides with what makes it true [Potter] |
| 10354 | Correspondence could be with other beliefs, rather than external facts [Kusch] |
| 22324 | It has been unfortunate that externalism about truth is equated with correspondence [Potter] |
| 10353 | Tarskians distinguish truth from falsehood by relations between members of sets [Kusch] |
| 10702 | Set theory's three roles: taming the infinite, subject-matter of mathematics, and modes of reasoning [Potter] |
| 10713 | Usually the only reason given for accepting the empty set is convenience [Potter] |
| 13044 | Infinity: There is at least one limit level [Potter] |
| 10708 | Nowadays we derive our conception of collections from the dependence between them [Potter] |
| 13546 | The 'limitation of size' principles say whether properties collectivise depends on the number of objects [Potter] |
| 10707 | Mereology elides the distinction between the cards in a pack and the suits [Potter] |
| 10704 | We can formalize second-order formation rules, but not inference rules [Potter] |
| 22279 | Frege's sign |--- meant judgements, but the modern |- turnstile means inference, with intecedents [Potter] |
| 22291 | Deductivism can't explain how the world supports unconditional conclusions [Potter] |
| 10703 | Supposing axioms (rather than accepting them) give truths, but they are conditional [Potter] |
| 22295 | Modern logical truths are true under all interpretations of the non-logical words [Potter] |
| 10712 | If set theory didn't found mathematics, it is still needed to count infinite sets [Potter] |
| 17882 | It is remarkable that all natural number arithmetic derives from just the Peano Axioms [Potter] |
| 22310 | The formalist defence against Gödel is to reject his metalinguistic concept of truth [Potter] |
| 22298 | Why is fictional arithmetic applicable to the real world? [Potter] |
| 22287 | If 'concrete' is the negative of 'abstract', that means desires and hallucinations are concrete [Potter] |
| 13043 | A relation is a set consisting entirely of ordered pairs [Potter] |
| 22284 | 'Greater than', which is the ancestral of 'successor', strictly orders the natural numbers [Potter] |
| 13042 | If dependence is well-founded, with no infinite backward chains, this implies substances [Potter] |
| 13041 | Collections have fixed members, but fusions can be carved in innumerable ways [Potter] |
| 10709 | Priority is a modality, arising from collections and members [Potter] |
| 22281 | A material conditional cannot capture counterfactual reasoning [Potter] |
| 10337 | We can have knowledge without belief, if others credit us with knowledge [Kusch] |
| 10357 | Methodological Solipsism assumes all ideas could be derived from one mind [Kusch] |
| 10339 | Foundations seem utterly private, even from oneself at a later time [Kusch] |
| 10331 | Testimony is reliable if it coheres with evidence for a belief, and with other beliefs [Kusch] |
| 10338 | The coherentist restricts the space of reasons to the realm of beliefs [Kusch] |
| 10340 | Individualistic coherentism lacks access to all of my beliefs, or critical judgement of my assessment [Kusch] |
| 10345 | Individual coherentism cannot generate the necessary normativity [Kusch] |
| 10350 | Cultures decide causal routes, and they can be critically assessed [Kusch] |
| 10343 | Process reliabilism has been called 'virtue epistemology', resting on perception, memory, reason [Kusch] |
| 22327 | Knowledge from a drunken schoolteacher is from a reliable and unreliable process [Potter] |
| 10341 | Justification depends on the audience and one's social role [Kusch] |
| 10334 | Testimony is an area in which epistemology meets ethics [Kusch] |
| 10336 | Powerless people are assumed to be unreliable, even about their own lives [Kusch] |
| 10324 | Testimony does not just transmit knowledge between individuals - it actually generates knowledge [Kusch] |
| 10327 | Some want to reduce testimony to foundations of perceptions, memories and inferences [Kusch] |
| 10329 | Testimony won't reduce to perception, if perception depends on social concepts and categories [Kusch] |
| 10330 | A foundation is what is intelligible, hence from a rational source, and tending towards truth [Kusch] |
| 10325 | Vindicating testimony is an expression of individualism [Kusch] |
| 10335 | Myths about lonely genius are based on epistemological individualism [Kusch] |
| 10323 | Communitarian Epistemology says 'knowledge' is a social status granted to groups of people [Kusch] |
| 10348 | Private justification is justification to imagined other people [Kusch] |
| 23266 | The spirit in the soul wants freedom, power and honour [Galen] |
| 6003 | Galen showed by experiment that the brain controls the body [Galen, by Hankinson] |
| 23219 | Stopping the heart doesn't terminate activity; pressing the brain does that [Galen, by Cobb] |
| 21799 | We just use the word 'faculty' when we don't know the psychological cause [Galen] |
| 23264 | Philosophers think faculties are in substances, and invent a faculty for every activity [Galen] |
| 10349 | To be considered 'an individual' is performed by a society [Kusch] |
| 23220 | The brain contains memory and reason, and is the source of sensation and decision [Galen] |
| 23265 | The rational part of the soul is the desire for truth, understanding and recollection [Galen] |
| 22273 | Traditionally there are twelve categories of judgement, in groups of three [Potter] |
| 10344 | Our experience may be conceptual, but surely not the world itself? [Kusch] |
| 22290 | The phrase 'the concept "horse"' can't refer to a concept, because it is saturated [Potter] |
| 22283 | Compositionality should rely on the parsing tree, which may contain more than sentence components [Potter] |
| 22282 | 'Direct compositonality' says the components wholly explain a sentence meaning [Potter] |
| 22296 | Compositionality is more welcome in logic than in linguistics (which is more contextual) [Potter] |
| 10358 | Often socialising people is the only way to persuade them [Kusch] |
| 7453 | Galen's medicine followed the mean; each illness was balanced by opposite treatment [Galen, by Hacking] |
| 6030 | Each part of the soul has its virtue - pleasure for appetite, success for competition, and rectitude for reason [Galen] |
| 10333 | Communitarianism in epistemology sees the community as the primary knower [Kusch] |
| 23268 | We execute irredeemable people, to protect ourselves, as a deterrent, and ending a bad life [Galen] |
| 10351 | Natural kinds are social institutions [Kusch] |
| 10332 | Omniscience is incoherent, since knowledge is a social concept [Kusch] |