67 ideas
| 13985 | A true proposition seems true of one fact, but a false proposition seems true of nothing at all. [Ryle] |
| 13984 | Two maps might correspond to one another, but they are only 'true' of the country they show [Ryle] |
| 13979 | Logic studies consequence, compatibility, contradiction, corroboration, necessitation, grounding.... [Ryle] |
| 14352 | '¬', '&', and 'v' are truth functions: the truth of the compound is fixed by the truth of the components [Jackson] |
| 6653 | Syntactical methods of proof need only structure, where semantic methods (truth-tables) need truth [Lowe] |
| 13988 | Many sentences do not state facts, but there are no facts which could not be stated [Ryle] |
| 6618 | A 'substance' is a thing that remains the same when its properties change [Lowe] |
| 14360 | Possible worlds for subjunctives (and dispositions), and no-truth for indicatives? [Jackson] |
| 14353 | Modus ponens requires that A→B is F when A is T and B is F [Jackson] |
| 14354 | When A and B have the same truth value, A→B is true, because A→A is a logical truth [Jackson] |
| 14355 | (A&B)→A is a logical truth, even if antecedent false and consequent true, so it is T if A is F and B is T [Jackson] |
| 14358 | In the possible worlds account of conditionals, modus ponens and modus tollens are validated [Jackson] |
| 14359 | Only assertions have truth-values, and conditionals are not proper assertions [Jackson] |
| 14357 | Possible worlds account, unlike A⊃B, says nothing about when A is false [Jackson] |
| 14356 | We can't insist that A is relevant to B, as conditionals can express lack of relevance [Jackson] |
| 6635 | Causal theories of belief make all beliefs true, and can't explain belief about the future [Lowe] |
| 6619 | Perhaps 'I' no more refers than the 'it' in 'it is raining' [Lowe] |
| 6643 | 'Ecological' approaches say we don't infer information, but pick it up directly from reality [Lowe] |
| 13983 | Representation assumes you know the ideas, and the reality, and the relation between the two [Ryle] |
| 6638 | One must be able to visually recognise a table, as well as knowing its form [Lowe] |
| 6644 | Computationalists object that the 'ecological' approach can't tell us how we get the information [Lowe] |
| 6647 | Comparing shapes is proportional in time to the angle of rotation [Lowe] |
| 6639 | The 'disjunctive' theory of perception says true perceptions and hallucinations need have nothing in common [Lowe] |
| 6640 | A causal theorist can be a direct realist, if all objects of perception are external [Lowe] |
| 6645 | If blindsight shows we don't need perceptual experiences, the causal theory is wrong [Lowe] |
| 6637 | How could one paraphrase very complex sense-data reports adverbially? [Lowe] |
| 6667 | There are memories of facts, memories of practical skills, and autobiographical memory [Lowe] |
| 6642 | Psychologists say illusions only occur in unnatural and passive situations [Lowe] |
| 6641 | Externalists say minds depend on environment for their very existence and identity [Lowe] |
| 6617 | The main questions are: is mind distinct from body, and does it have unique properties? [Lowe] |
| 6626 | 'Phenomenal' consciousness is of qualities; 'apperceptive' consciousness includes beliefs and desires [Lowe] |
| 6646 | The brain may have two systems for vision, with only the older one intact in blindsight [Lowe] |
| 6665 | Persons are selves - subjects of experience, with reflexive self-knowledge [Lowe] |
| 6670 | If my brain could survive on its own, I cannot be identical with my whole body [Lowe] |
| 6671 | It seems impossible to get generally applicable mental concepts from self-observation [Lowe] |
| 6666 | All human languages have an equivalent of the word 'I' [Lowe] |
| 6625 | If qualia are causally inert, how can we even know about them? [Lowe] |
| 6621 | You can only identify behaviour by ascribing belief, so the behaviour can't explain the belief [Lowe] |
| 6654 | A computer program is equivalent to the person AND the manual [Lowe] |
| 6629 | Functionalism commits us to bizarre possibilities, such as 'zombies' [Lowe] |
| 6623 | Functionalism can't distinguish our experiences in spectrum inversion [Lowe] |
| 6628 | Functionalism only discusses relational properties of mental states, not intrinsic properties [Lowe] |
| 6622 | Non-reductive physicalism accepts token-token identity (not type-type) and asserts 'supervenience' of mind and brain [Lowe] |
| 6634 | Physicalists must believe in narrow content (because thoughts are merely the brain states) [Lowe] |
| 6630 | Eliminativism is incoherent if it eliminates reason and truth as well as propositional attitudes [Lowe] |
| 6648 | Some behaviourists believe thought is just suppressed speech [Lowe] |
| 6651 | People are wildly inaccurate in estimating probabilities about an observed event [Lowe] |
| 6652 | 'Base rate neglect' makes people favour the evidence over its background [Lowe] |
| 13980 | If you like judgments and reject propositions, what are the relata of incoherence in a judgment? [Ryle] |
| 6655 | The 'Frame Problem' is how to program the appropriate application of general knowledge [Lowe] |
| 6657 | Computers can't be rational, because they lack motivation and curiosity [Lowe] |
| 6656 | The Turing test is too behaviourist, and too verbal in its methods [Lowe] |
| 6636 | The naturalistic views of how content is created are the causal theory and the teleological theory [Lowe] |
| 6633 | Twin Earth cases imply that even beliefs about kinds of stuff are indexical [Lowe] |
| 13978 | Husserl and Meinong wanted objective Meanings and Propositions, as subject-matter for Logic [Ryle] |
| 13977 | When I utter a sentence, listeners grasp both my meaning and my state of mind [Ryle] |
| 13976 | 'Propositions' name what is thought, because 'thoughts' and 'judgments' are too ambiguous [Ryle] |
| 13981 | Several people can believe one thing, or make the same mistake, or share one delusion [Ryle] |
| 13987 | We may think in French, but we don't know or believe in French [Ryle] |
| 6632 | The same proposition provides contents for the that-clause of an utterance and a belief [Lowe] |
| 13989 | There are no propositions; they are just sentences, used for thinking, which link to facts in a certain way [Ryle] |
| 13982 | If we accept true propositions, it is hard to reject false ones, and even nonsensical ones [Ryle] |
| 6631 | If propositions are abstract entities, how can minds depend on their causal powers? [Lowe] |
| 6659 | The three main theories of action involve the will, or belief-plus-desire, or an agent [Lowe] |
| 6661 | Libet gives empirical support for the will, as a kind of 'executive' mental operation [Lowe] |
| 6662 | We feel belief and desire as reasons for choice, not causes of choice [Lowe] |
| 6663 | People's actions are explained either by their motives, or their reasons, or the causes [Lowe] |