260 ideas
12644 | Who cares what 'philosophy' is? Most pre-1950 thought doesn't now count as philosophy [Fodor] |
12633 | Definitions often give necessary but not sufficient conditions for an extension [Fodor] |
2474 | It seems likely that analysis of concepts is impossible, but justification can survive without it [Fodor] |
2481 | Despite all the efforts of philosophers, nothing can ever be reduced to anything [Fodor] |
2505 | Turing invented the idea of mechanical rationality (just based on syntax) [Fodor] |
2463 | A standard naturalist view is realist, externalist, and computationalist, and believes in rationality [Fodor] |
15924 | Predicative definitions are acceptable in mathematics if they distinguish objects, rather than creating them? [Zermelo, by Lavine] |
12619 | We have no successful definitions, because they all use indefinable words [Fodor] |
2470 | Transcendental arguments move from knowing Q to knowing P because it depends on Q [Fodor] |
2435 | Psychology has to include the idea that mental processes are typically truth-preserving [Fodor] |
22309 | An idea can only be like another idea [Berkeley] |
17608 | We take set theory as given, and retain everything valuable, while avoiding contradictions [Zermelo] |
17607 | Set theory investigates number, order and function, showing logical foundations for mathematics [Zermelo] |
10870 | ZFC: Existence, Extension, Specification, Pairing, Unions, Powers, Infinity, Choice [Zermelo, by Clegg] |
13012 | Zermelo published his axioms in 1908, to secure a controversial proof [Zermelo, by Maddy] |
17609 | Set theory can be reduced to a few definitions and seven independent axioms [Zermelo] |
9565 | Zermelo made 'set' and 'member' undefined axioms [Zermelo, by Chihara] |
3339 | For Zermelo's set theory the empty set is zero and the successor of each number is its unit set [Zermelo, by Blackburn] |
17832 | Zermelo showed that the ZF axioms in 1930 were non-categorical [Zermelo, by Hallett,M] |
13017 | Zermelo introduced Pairing in 1930, and it seems fairly obvious [Zermelo, by Maddy] |
13028 | Replacement was added when some advanced theorems seemed to need it [Zermelo, by Maddy] |
13015 | Zermelo used Foundation to block paradox, but then decided that only Separation was needed [Zermelo, by Maddy] |
13020 | The Axiom of Separation requires set generation up to one step back from contradiction [Zermelo, by Maddy] |
13486 | Not every predicate has an extension, but Separation picks the members that satisfy a predicate [Zermelo, by Hart,WD] |
2442 | Inferences are surely part of the causal structure of the world [Fodor] |
12664 | A truth-table, not inferential role, defines 'and' [Fodor] |
3005 | 'Jocasta' needs to be distinguished from 'Oedipus's mother' because they are connected by different properties [Fodor] |
12648 | Names in thought afford a primitive way to bring John before the mind [Fodor] |
12650 | 'Paderewski' has two names in mentalese, for his pianist file and his politician file [Fodor] |
12656 | P-and-Q gets its truth from the truth of P and truth of Q, but consistency isn't like that [Fodor] |
17626 | The antinomy of endless advance and of completion is resolved in well-ordered transfinite numbers [Zermelo] |
13487 | In ZF, the Burali-Forti Paradox proves that there is no set of all ordinals [Zermelo, by Hart,WD] |
15897 | Zermelo realised that Choice would facilitate the sort of 'counting' Cantor needed [Zermelo, by Lavine] |
18091 | Infinitesimals are ghosts of departed quantities [Berkeley] |
18178 | For Zermelo the successor of n is {n} (rather than n U {n}) [Zermelo, by Maddy] |
13027 | Zermelo believed, and Von Neumann seemed to confirm, that numbers are sets [Zermelo, by Maddy] |
9627 | Different versions of set theory result in different underlying structures for numbers [Zermelo, by Brown,JR] |
12620 | If 'exist' is ambiguous in 'chairs and numbers exist', that mirrors the difference between chairs and numbers [Fodor] |
6717 | Abstract ideas are impossible [Berkeley] |
3942 | I do not believe in the existence of anything, if I see no reason to believe it [Berkeley] |
3952 | I know that nothing inconsistent can exist [Berkeley] |
18876 | Berkeley does believe in trees, but is confused about what trees are [Berkeley, by Cameron] |
2469 | The world is full of messy small things producing stable large-scale properties (e.g. mountains) [Fodor] |
7014 | A particle and a coin heads-or-tails pick out to perfectly well-defined predicates and properties [Fodor] |
12613 | Empiricists use dispositions reductively, as 'possibility of sensation' or 'possibility of experimental result' [Fodor] |
2475 | Don't define something by a good instance of it; a good example is a special case of the ordinary example [Fodor] |
6715 | Universals do not have single meaning, but attach to many different particulars [Berkeley] |
6719 | No one will think of abstractions if they only have particular ideas [Berkeley] |
6714 | Universals do not have any intrinsic properties, but only relations to particulars [Berkeley] |
6729 | Material substance is just general existence which can have properties [Berkeley] |
3959 | There is no other substance, in a strict sense, than spirit [Berkeley] |
16636 | A die has no distinct subject, but is merely a name for its modes or accidents [Berkeley] |
3946 | A thing is shown to be impossible if a contradiction is demonstrated within its definition [Berkeley] |
12653 | There's statistical, logical, nomological, conceptual and metaphysical possibility [Fodor] |
12651 | Some beliefs are only inferred when needed, like 'Shakespeare had not telephone' [Fodor] |
2502 | How do you count beliefs? [Fodor] |
12628 | Knowing that must come before knowing how [Fodor] |
3958 | Since our ideas vary when the real things are said to be unchanged, they cannot be true copies [Berkeley] |
3943 | If existence is perceived directly, by which sense; if indirectly, how is it inferred from direct perception? [Berkeley] |
3931 | Sensible objects are just sets of sensible qualities [Berkeley] |
6722 | Perception is existence for my table, but also possible perception, by me or a spirit [Berkeley] |
5192 | Berkeley did not deny material things; he merely said they must be defined through sensations [Berkeley, by Ayer] |
5174 | Berkeley needed a phenomenalist account of the self, as well as of material things [Ayer on Berkeley] |
6724 | The only substance is spirit, or that which perceives [Berkeley] |
6723 | The 'esse' of objects is 'percipi', and they can only exist in minds [Berkeley] |
6732 | When I shut my eyes, the things I saw may still exist, but in another mind [Berkeley] |
1103 | 'To be is to be perceived' is a simple confusion of experience with its objects [Russell on Berkeley] |
6403 | For Berkelely, reality is ideas and a community of minds, including God's [Berkeley, by Grayling] |
3936 | Time is measured by the succession of ideas in our minds [Berkeley] |
3930 | There is no such thing as 'material substance' [Berkeley] |
3939 | I conceive a tree in my mind, but I cannot prove that its existence can be conceived outside a mind [Berkeley] |
3945 | There is nothing in nature which needs the concept of matter to explain it [Berkeley] |
3947 | Perceptions are ideas, and ideas exist in the mind, so objects only exist in the mind [Berkeley] |
2501 | Berkeley seems to have mistakenly thought that chairs are the same as after-images [Fodor] |
3008 | Evolution suggests that innate knowledge of human psychology would be beneficial [Fodor] |
2990 | Contrary to commonsense, most of what is in the mind seems to be unlearned [Fodor] |
3009 | Sticklebacks have an innate idea that red things are rivals [Fodor] |
3933 | Primary qualities (such as shape, solidity, mass) are held to really exist, unlike secondary qualities [Berkeley] |
6726 | No one can, by abstraction, conceive extension and motion of bodies without sensible qualities [Berkeley] |
6728 | Motion is in the mind, since swifter ideas produce an appearance of slower motion [Berkeley] |
6727 | Figure and extension seem just as dependent on the observer as heat and cold [Berkeley] |
3934 | A mite would see its own foot as large, though we would see it as tiny [Berkeley] |
3935 | The apparent size of an object varies with its distance away, so that can't be a property of the object [Berkeley] |
3937 | 'Solidity' is either not a sensible quality at all, or it is clearly relative to our senses [Berkeley] |
3940 | Distance is not directly perceived by sight [Berkeley] |
6495 | Berkeley's idealism resulted from fear of scepticism in representative realism [Robinson,H on Berkeley] |
3957 | Immediate objects of perception, which some treat as appearances, I treat as the real things themselves [Berkeley] |
2465 | Maybe explaining the mechanics of perception will explain the concepts involved [Fodor] |
2504 | Rationalism can be based on an evolved computational brain with innate structure [Fodor] |
6720 | Knowledge is of ideas from senses, or ideas of the mind, or operations on sensations [Berkeley] |
3953 | Real things and imaginary or dreamed things differ because the latter are much fainter [Berkeley] |
2493 | According to empiricists abstraction is the fundamental mental process [Fodor] |
3978 | Associations are held to connect Ideas together in the way the world is connected together [Fodor] |
12617 | Associationism can't explain how truth is preserved [Fodor] |
12625 | Pragmatism is the worst idea ever [Fodor] |
3938 | Geometry is originally perceived by senses, and so is not purely intellectual [Berkeley] |
2494 | Rationalists say there is more to a concept than the experience that prompts it [Fodor] |
2462 | Control of belief is possible if you know truth conditions and what causes beliefs [Fodor] |
3944 | It is possible that we could perceive everything as we do now, but nothing actually existed. [Berkeley] |
3932 | A hot hand and a cold hand will have different experiences in the same tepid water [Berkeley] |
2461 | An experiment is a deliberate version of what informal thinking does all the time [Fodor] |
2454 | We can deliberately cause ourselves to have true thoughts - hence the value of experiments [Fodor] |
2455 | Interrogation and experiment submit us to having beliefs caused [Fodor] |
2460 | Participation in an experiment requires agreement about what the outcome will mean [Fodor] |
2458 | Theories are links in the causal chain between the environment and our beliefs [Fodor] |
2503 | Empirical approaches see mind connections as mirrors/maps of reality [Fodor] |
2508 | The function of a mind is obvious [Fodor] |
12636 | Mental states have causal powers [Fodor] |
2994 | In CRTT thought may be represented, content must be [Fodor] |
2443 | I say psychology is intentional, semantics is informational, and thinking is computation [Fodor] |
23636 | Berkeley's idealism gives no grounds for believing in other minds [Reid on Berkeley] |
6736 | I know other minds by ideas which are referred by me to other agents, as their effects [Berkeley] |
3948 | Experience tells me that other minds exist independently from my own [Berkeley] |
6713 | If animals have ideas, and are not machines, they must have some reason [Berkeley] |
2453 | We are probably the only creatures that can think about our own thoughts [Fodor] |
15473 | How does anything get outside itself? [Fodor, by Martin,CB] |
2485 | Do intentional states explain our behaviour? [Fodor] |
6491 | Berkeley replaced intentionality with an anti-abstractionist imagist theory of thought [Berkeley, by Robinson,H] |
2981 | Is intentionality outwardly folk psychology, inwardly mentalese? [Lyons on Fodor] |
15494 | We can't use propositions to explain intentional attitudes, because they would need explaining [Fodor] |
7326 | Intentionality doesn't go deep enough to appear on the physicists' ultimate list of things [Fodor] |
3976 | Intentional science needs objects with semantic and causal properties, and which obey laws [Fodor] |
3980 | Intentional states and processes may be causal relations among mental symbols [Fodor] |
6711 | The mind creates abstract ideas by considering qualities separated from their objects [Berkeley] |
10581 | I can only combine particulars in imagination; I can't create 'abstract' ideas [Berkeley] |
12661 | The different types of resemblance don't resemble one another [Fodor] |
2506 | If I have a set of mental modules, someone had better be in charge of them! [Fodor] |
6721 | Ideas are perceived by the mind, soul or self [Berkeley] |
2446 | Cartesians consider interaction to be a miracle [Fodor] |
2445 | Semantics v syntax is the interaction problem all over again [Fodor] |
2599 | Either intentionality causes things, or epiphenomenalism is true [Fodor] |
3001 | Behaviourism has no theory of mental causation [Fodor] |
2467 | Functionalists see pains as properties involving relations and causation [Fodor] |
2993 | Any piece of software can always be hard-wired [Fodor] |
12632 | In the Representational view, concepts play the key linking role [Fodor] |
3011 | Causal powers must be a crucial feature of mental states [Fodor] |
5498 | Mind is a set of hierarchical 'homunculi', which are made up in turn from subcomponents [Fodor, by Lycan] |
2597 | Contrary to the 'anomalous monist' view, there may well be intentional causal laws [Fodor] |
2489 | Why bother with neurons? You don't explain bird flight by examining feathers [Fodor] |
2985 | Are beliefs brains states, but picked out at a "higher level"? [Lyons on Fodor] |
2995 | Supervenience gives good support for mental causation [Fodor] |
2464 | Type physicalism equates mental kinds with physical kinds [Fodor] |
2468 | Type physicalism is a stronger claim than token physicalism [Fodor] |
2447 | Hume has no theory of the co-ordination of the mind [Fodor] |
2490 | Modern connectionism is just Hume's theory of the 'association' of 'ideas' [Fodor] |
12624 | Only the labels of nodes have semantic content in connectionism, and they play no role [Fodor] |
2991 | Hume's associationism offers no explanation at all of rational thought [Fodor] |
3941 | How can that which is unthinking be a cause of thought? [Berkeley] |
3002 | If mind is just physical, how can it follow the rules required for intelligent thought? [Fodor] |
2598 | Lots of physical properties are multiply realisable, so why shouldn't beliefs be? [Fodor] |
3981 | Most psychological properties seem to be multiply realisable [Fodor] |
2476 | The goal of thought is to understand the world, not instantly sort it into conceptual categories [Fodor] |
12640 | Associative thinking avoids syntax, but can't preserve sense, reference or truth [Fodor] |
2992 | We may be able to explain rationality mechanically [Fodor] |
12641 | Connectionism gives no account of how constituents make complex concepts [Fodor] |
2440 | Propositional attitudes are propositions presented in a certain way [Fodor] |
2988 | Folk psychology is the only explanation of behaviour we have [Fodor] |
3975 | Folk psychology explains behaviour by reference to intentional states like belief and desire [Fodor] |
2450 | Rationality has mental properties - autonomy, productivity, experiment [Fodor] |
17613 | We should judge principles by the science, not science by some fixed principles [Zermelo] |
2497 | Something must take an overview of the modules [Fodor] |
2509 | Modules have in-built specialist information [Fodor] |
22186 | Mental modules are specialised, automatic, and isolated [Fodor, by Okasha] |
2491 | Modules have encapsulation, inaccessibility, private concepts, innateness [Fodor] |
2495 | Obvious modules are language and commonsense explanation [Fodor] |
2499 | Modules analyse stimuli, they don't tell you what to do [Fodor] |
2496 | Blindness doesn't destroy spatial concepts [Fodor] |
2498 | Modules make the world manageable [Fodor] |
2500 | Babies talk in consistent patterns [Fodor] |
2507 | Rationality rises above modules [Fodor] |
2480 | Language is ambiguous, but thought isn't [Fodor] |
2487 | Mentalese may also incorporate some natural language [Fodor] |
2483 | Mentalese doesn't require a theory of meaning [Fodor] |
12643 | Ambiguities in English are the classic reason for claiming that we don't think in English [Fodor] |
8090 | Since the language of thought is the same for all, it must be something like logical form [Fodor, by Devlin] |
2604 | We must have expressive power BEFORE we learn language [Fodor] |
3010 | Belief and desire are structured states, which need mentalese [Fodor] |
12647 | Mental representations name things in the world, but also files in our memory [Fodor] |
12649 | We think in file names [Fodor] |
3135 | Is thought a syntactic computation using representations? [Fodor, by Rey] |
12655 | Frame Problem: how to eliminate most beliefs as irrelevant, without searching them? [Fodor] |
2983 | Maybe narrow content is physical, broad content less so [Lyons on Fodor] |
5374 | Berkeley probably used 'idea' to mean both the act of apprehension and the thing apprehended [Russell on Berkeley] |
12615 | Mental representations are the old 'Ideas', but without images [Fodor] |
2437 | XYZ (Twin Earth 'water') is an impossibility [Fodor] |
12630 | If concept content is reference, then my Twin and I are referring to the same stuff [Fodor] |
2441 | Truth conditions require a broad concept of content [Fodor] |
3982 | How could the extrinsic properties of thoughts supervene on their intrinsic properties? [Fodor] |
3114 | Concepts aren't linked to stuff; they are what is caused by stuff [Fodor] |
2999 | Obsession with narrow content leads to various sorts of hopeless anti-realism [Fodor] |
2486 | Content can't be causal role, because causal role is decided by content [Fodor] |
3012 | Do identical thoughts have identical causal roles? [Fodor] |
2452 | Knowing the cause of a thought is almost knowing its content [Fodor] |
2432 | Is content basically information, fixed externally? [Fodor] |
12658 | Nobody knows how concepts are acquired [Fodor] |
2492 | Experience can't explain itself; the concepts needed must originate outside experience [Fodor] |
11143 | If concept-learning is hypothesis-testing, that needs innate concepts to get started [Fodor, by Margolis/Laurence] |
6650 | Fodor is now less keen on the innateness of concepts [Fodor, by Lowe] |
12662 | We have an innate capacity to form a concept, once we have grasped the stereotype [Fodor] |
12618 | It is essential to the concept CAT that it be satisfied by cats [Fodor] |
12635 | Having a concept isn't a pragmatic matter, but being able to think about the concept [Fodor] |
12652 | Concepts have two sides; they are files that face thought, and also face subject-matter [Fodor] |
12626 | Cartesians put concept individuation before concept possession [Fodor] |
2438 | In the information view, concepts are potentials for making distinctions [Fodor] |
12614 | I prefer psychological atomism - that concepts are independent of epistemic capacities [Fodor] |
2471 | Are concepts best seen as capacities? [Fodor] |
2472 | For Pragmatists having a concept means being able to do something [Fodor] |
12637 | Frege's puzzles suggest to many that concepts have sense as well as reference [Fodor] |
12638 | If concepts have sense, we can't see the connection to their causal powers [Fodor] |
12639 | Belief in 'senses' may explain intentionality, but not mental processes [Fodor] |
12654 | You can't think 'brown dog' without thinking 'brown' and 'dog' [Fodor] |
12621 | Definable concepts have constituents, which are necessary, individuate them, and demonstrate possession [Fodor] |
12622 | Many concepts lack prototypes, and complex prototypes aren't built from simple ones [Fodor] |
12659 | Maybe stereotypes are a stage in concept acquisition (rather than a by-product) [Fodor] |
12660 | One stereotype might be a paradigm for two difference concepts [Fodor] |
12623 | The theory theory can't actually tell us what concepts are [Fodor] |
12629 | For the referential view of thought, the content of a concept is just its reference [Fodor] |
12631 | Compositionality requires that concepts be atomic [Fodor] |
12657 | Abstractionism claims that instances provide criteria for what is shared [Fodor] |
2439 | Semantic externalism says the concept 'elm' needs no further beliefs or inferences [Fodor] |
2457 | If meaning is information, that establishes the causal link between the state of the world and our beliefs [Fodor] |
6716 | Language is presumably for communication, and names stand for ideas [Berkeley] |
2998 | Grice thinks meaning is inherited from the propositional attitudes which sentences express [Fodor] |
2482 | It seems unlikely that meaning can be reduced to communicative intentions, or any mental states [Fodor] |
3006 | Whatever in the mind delivers falsehood is parasitic on what delivers truth [Fodor] |
2451 | To know the content of a thought is to know what would make it true [Fodor] |
3007 | Many different verification procedures can reach 'star', but it only has one semantic value [Fodor] |
3004 | The meaning of a sentence derives from its use in expressing an attitude [Fodor] |
3000 | Meaning holism is a crazy doctrine [Fodor] |
2433 | For holists no two thoughts are ever quite the same, which destroys faith in meaning [Fodor] |
2477 | If to understand "fish" you must know facts about them, where does that end? [Fodor] |
3003 | Very different mental states can share their contents, so content doesn't seem to be constructed from functional role [Fodor] |
12634 | 'Inferential-role semantics' says meaning is determined by role in inference [Fodor] |
2996 | Mental states may have the same content but different extensions [Fodor] |
12642 | Co-referring terms differ if they have different causal powers [Fodor] |
12663 | We refer to individuals and to properties, and we use singular terms and predicates [Fodor] |
2436 | It is claimed that reference doesn't fix sense (Jocasta), and sense doesn't fix reference (Twin Earth) [Fodor] |
2434 | Broad semantics holds that the basic semantic properties are truth and denotation [Fodor] |
12616 | English has no semantic theory, just associations between sentences and thoughts [Fodor] |
12645 | Semantics (esp. referential semantics) allows inferences from utterances to the world [Fodor] |
12646 | Semantics relates to the world, so it is never just psychological [Fodor] |
2459 | Externalist semantics are necessary to connect the contents of beliefs with how the world is [Fodor] |
6718 | I can't really go wrong if I stick to wordless thought [Berkeley] |
2473 | Analysis is impossible without the analytic/synthetic distinction [Fodor] |
2484 | The theory of the content of thought as 'Mentalese' explains why the Private Language Argument doesn't work [Fodor] |
12627 | Before you can plan action, you must decide on the truth of your estimate of success [Fodor] |
3954 | Immorality is not in the action, but in the deviation of the will from moral law [Berkeley] |
6731 | No one can explain how matter affects mind, so matter is redundant in philosophy [Berkeley] |
6730 | We discover natural behaviour by observing settled laws of nature, not necessary connections [Berkeley] |
15861 | The laws of nature are mental regularities which we learn by experience [Berkeley] |
6734 | If properties and qualities arise from an inward essence, we will remain ignorant of nature [Berkeley] |
3977 | Laws are true generalisations which support counterfactuals and are confirmed by instances [Fodor] |
6735 | All motion is relative, so a single body cannot move [Berkeley] |
6733 | I cannot imagine time apart from the flow of ideas in my mind [Berkeley] |
3950 | There must be a God, because all sensible things must be perceived by him [Berkeley] |
3951 | There must be a God, because I and my ideas are not independent [Berkeley] |
3949 | It has been proved that creation is the workmanship of God, from its beauty and usefulness [Berkeley] |
6737 | Particular evils are really good when linked to the whole system of beings [Berkeley] |
3956 | People are responsible because they have limited power, though this ultimately derives from God [Berkeley] |
3955 | If sin is not just physical, we don't consider God the origin of sin because he causes physical events [Berkeley] |