132 ideas
20383 | The wisest man is full of contradictions, and attuned to other people, with occasional harmony [Nietzsche] |
4520 | I don't want to persuade anyone to be a philosopher; they should be rare plants [Nietzsche] |
21970 | Philosophy attains its goal if one person feels perfect accord between their system and experience [Fichte] |
4545 | Could not the objective character of things be merely a difference of degree within the subjective? [Nietzsche] |
4530 | Reason is a mere idiosyncrasy of a certain species of animal [Nietzsche] |
6912 | For Fichte there is no God outside the ego, and 'our religion is reason' [Fichte, by Feuerbach] |
4523 | What can be 'demonstrated' is of little worth [Nietzsche] |
4531 | Our inability to both affirm and deny a single thing is merely an inability, not a 'necessity' [Nietzsche] |
4541 | Everything simple is merely imaginary [Nietzsche] |
20357 | Truth was given value by morality, but eventually turned against its own source [Nietzsche] |
4534 | 'Truth' is the will to be master over the multiplicity of sensations [Nietzsche] |
4548 | Only because there is thought is there untruth [Nietzsche] |
5652 | True beliefs are those which augment one's power [Nietzsche, by Scruton] |
4508 | The truth is what gives us the minimum of spiritual effort, and avoids the exhaustion of lying [Nietzsche] |
4538 | Judgements can't be true and known in isolation; the only surety is in connections and relations [Nietzsche] |
10987 | Three traditional names of rules are 'Simplification', 'Addition' and 'Disjunctive Syllogism' [Read] |
11004 | Necessity is provability in S4, and true in all worlds in S5 [Read] |
11018 | There are fuzzy predicates (and sets), and fuzzy quantifiers and modifiers [Read] |
11011 | Same say there are positive, negative and neuter free logics [Read] |
11020 | Realisms like the full Comprehension Principle, that all good concepts determine sets [Read] |
10986 | Not all validity is captured in first-order logic [Read] |
10972 | The non-emptiness of the domain is characteristic of classical logic [Read] |
11024 | Semantics must precede proof in higher-order logics, since they are incomplete [Read] |
10985 | We should exclude second-order logic, precisely because it captures arithmetic [Read] |
10970 | A theory of logical consequence is a conceptual analysis, and a set of validity techniques [Read] |
10984 | Logical consequence isn't just a matter of form; it depends on connections like round-square [Read] |
10973 | A theory is logically closed, which means infinite premisses [Read] |
11007 | Quantifiers are second-order predicates [Read] |
10978 | In second-order logic the higher-order variables range over all the properties of the objects [Read] |
10971 | A logical truth is the conclusion of a valid inference with no premisses [Read] |
10988 | Any first-order theory of sets is inadequate [Read] |
10975 | Compactness does not deny that an inference can have infinitely many premisses [Read] |
10974 | Compactness is when any consequence of infinite propositions is the consequence of a finite subset [Read] |
10977 | Compactness blocks the proof of 'for every n, A(n)' (as the proof would be infinite) [Read] |
10976 | Compactness makes consequence manageable, but restricts expressive power [Read] |
11014 | Self-reference paradoxes seem to arise only when falsity is involved [Read] |
20361 | We need 'unities' for reckoning, but that does not mean they exist [Nietzsche] |
11025 | Infinite cuts and successors seems to suggest an actual infinity there waiting for us [Read] |
10979 | Although second-order arithmetic is incomplete, it can fully model normal arithmetic [Read] |
10980 | Second-order arithmetic covers all properties, ensuring categoricity [Read] |
10997 | Von Neumann numbers are helpful, but don't correctly describe numbers [Read] |
4533 | Logic and maths refer to fictitious entities which we have created [Nietzsche] |
20359 | The nature of being, of things, is much easier to understand than is becoming [Nietzsche] |
4525 | There are no facts in themselves, only interpretations [Nietzsche] |
4543 | There are no 'facts-in-themselves', since a sense must be projected into them to make them 'facts' [Nietzsche] |
11016 | Would a language without vagueness be usable at all? [Read] |
11019 | Supervaluations say there is a cut-off somewhere, but at no particular place [Read] |
11012 | A 'supervaluation' gives a proposition consistent truth-value for classical assignments [Read] |
11013 | Identities and the Indiscernibility of Identicals don't work with supervaluations [Read] |
4484 | Nihilism results from valuing the world by the 'categories of reason', because that is fiction [Nietzsche] |
4546 | We realise that properties are sensations of the feeling subject, not part of the thing [Nietzsche] |
4544 | A thing has no properties if it has no effect on other 'things' [Nietzsche] |
10995 | A haecceity is a set of individual properties, essential to each thing [Read] |
20362 | We saw unity in things because our ego seemed unified (but now we doubt the ego!) [Nietzsche] |
11001 | Equating necessity with truth in every possible world is the S5 conception of necessity [Read] |
4528 | For me, a priori 'truths' are just provisional assumptions [Nietzsche] |
10989 | The standard view of conditionals is that they are truth-functional [Read] |
10992 | The point of conditionals is to show that one will accept modus ponens [Read] |
11017 | Some people even claim that conditionals do not express propositions [Read] |
10983 | Knowledge of possible worlds is not causal, but is an ontology entailed by semantics [Read] |
10982 | How can modal Platonists know the truth of a modal proposition? [Read] |
10996 | Actualism is reductionist (to parts of actuality), or moderate realist (accepting real abstractions) [Read] |
10981 | A possible world is a determination of the truth-values of all propositions of a domain [Read] |
11000 | If worlds are concrete, objects can't be present in more than one, and can only have counterparts [Read] |
4537 | We can't know whether there is knowledge if we don't know what it is [Nietzsche] |
4485 | Every belief is a considering-something-true [Nietzsche] |
4487 | A note for asses: What convinces is not necessarily true - it is merely convincing [Nietzsche] |
21973 | Fichte believed in things-in-themselves [Fichte, by Moore,AW] |
21914 | We can deduce experience from self-consciousness, without the thing-in-itself [Fichte] |
20951 | The absolute I divides into consciousness, and a world which is not-I [Fichte, by Bowie] |
21964 | Reason arises from freedom, so philosophy starts from the self, and not from the laws of nature [Fichte] |
21968 | Abandon the thing-in-itself; things only exist in relation to our thinking [Fichte] |
4539 | The forms of 'knowledge' about logic which precede experience are actually regulations of belief [Nietzsche] |
4529 | All sense perceptions are permeated with value judgements (useful or harmful) [Nietzsche] |
4532 | We can have two opposite sensations, like hard and soft, at the same time [Nietzsche] |
4486 | The extreme view is there are only perspectives, no true beliefs, because there is no true world [Nietzsche] |
4536 | It is a major blunder to think of consciousness as a unity, and hence as an entity, a thing [Nietzsche] |
10998 | The mind abstracts ways things might be, which are nonetheless real [Read] |
4551 | Great self-examination is to become conscious of oneself not as an individual, but as mankind [Nietzsche] |
4527 | Perhaps we are not single subjects, but a multiplicity of 'cells', interacting to create thought [Nietzsche] |
21965 | Spinoza could not actually believe his determinism, because living requires free will [Fichte] |
20374 | Consciousness is a terminal phenomenon, and causes nothing [Nietzsche] |
23938 | Passions are ranked, as if they are non-rational and animal pleasure seeking [Nietzsche] |
23939 | We fail to see that reason is a network of passions, and every passion contains some reason [Nietzsche] |
11005 | Negative existentials with compositionality make the whole sentence meaningless [Read] |
10966 | A proposition objectifies what a sentence says, as indicative, with secure references [Read] |
4554 | The concept of the 'will' is just a false simplification by our understanding [Nietzsche] |
4552 | There is no such things a pure 'willing' on its own; the aim must always be part of it [Nietzsche] |
4521 | None of the ancients had the courage to deny morality by denying free will [Nietzsche] |
4496 | 'Conscience' is invented to value actions by intention and conformity to 'law', rather than consequences [Nietzsche] |
20136 | There is an extended logic to a great man's life, achieved by a sustained will [Nietzsche] |
20358 | The highest man can endure and control the greatest combination of powerful drives [Nietzsche] |
20369 | The highest man directs the values of the highest natures over millenia [Nietzsche] |
4506 | There is a conspiracy (a will to power) to make morality dominate other values, like knowledge and art [Nietzsche] |
4514 | The basic tendency of the weak has always been to pull down the strong, using morality [Nietzsche] |
20370 | All evaluation is from some perspective, and aims at survival [Nietzsche] |
20354 | The ruling drives of our culture all want to be the highest court of our values [Nietzsche] |
4505 | How can it be that I should prefer my neighbour to myself, but he should prefer me to himself? [Nietzsche] |
4509 | Utilitarians prefer consequences because intentions are unknowable - but so are consequences! [Nietzsche] |
4558 | We have no more right to 'happiness' than worms [Nietzsche] |
4500 | It is a sign of degeneration when eudaimonistic values begin to prevail [Nietzsche] |
4550 | Pleasure and pain are mere epiphenomena, and achievement requires that one desire both [Nietzsche] |
4518 | The question about egoism is: what kind of ego? since not all egos are equal [Nietzsche] |
4519 | The ego is only a fiction, and doesn't exist at all [Nietzsche] |
4517 | Egoism is inescapable, and when it grows weak, the power of love also grows weak [Nietzsche] |
4560 | The Golden Rule prohibits harmful actions, with the premise that actions will be requited [Nietzsche] |
4555 | The great error is to think that happiness derives from virtue, which in turn derives from free will [Nietzsche] |
4494 | Not "return to nature", for there has never yet been a natural humanity [Nietzsche] |
4498 | 'Love your enemy' is unnatural, for the natural law says 'love your neighbour and hate your enemy' [Nietzsche] |
4493 | Be natural! But how, if one happens to be "unnatural"? [Nietzsche] |
4511 | We would avoid a person who always needed reasons for remaining decent [Nietzsche] |
4512 | Virtue is pursued from self-interest and prudence, and reduces people to non-entities [Nietzsche] |
20372 | The instinct of the herd, the majority, aims for the mean, in the middle [Nietzsche] |
4515 | Modesty, industriousness, benevolence and temperance are the virtues of a good slave [Nietzsche] |
4516 | Many virtues are merely restraints on the most creative qualities of a human being [Nietzsche] |
4510 | A path to power: to introduce a new virtue under the name of an old one [Nietzsche] |
4559 | When powerless one desires freedom; if power is too weak, one desires equal power ('justice') [Nietzsche] |
4557 | The supposed great lovers of honour (Alexander etc) were actually great despisers of honour [Nietzsche] |
4507 | The categorical imperative needs either God behind it, or a metaphysic of the unity of reason [Nietzsche] |
4501 | Utilitarianism criticises the origins of morality, but still believes in it as much as Christians [Nietzsche] |
4489 | If faith is lost, people seek other authorities, in order to avoid the risk of willing personal goals [Nietzsche] |
4513 | Virtuous people are inferior because they are not 'persons', but conform to a fixed pattern [Nietzsche] |
4504 | Morality used to be for preservation, but now we can only experiment, giving ourselves moral goals [Nietzsche] |
4495 | The high points of culture and civilization do not coincide [Nietzsche] |
4491 | In modern society virtue is 'equal rights', but only because everyone is zero, so it is a sum of zeroes [Nietzsche] |
4542 | Science has taken the meaning out of causation; cause and effect are two equal sides of an equation [Nietzsche] |
4553 | We derive the popular belief in cause and effect from our belief that our free will causes things [Nietzsche] |
4535 | A 'species' is a stable phase of evolution, implying the false notion that evolution has a goal [Nietzsche] |
4497 | The concept of 'God' represents a turning away from life, and a critique of life [Nietzsche] |
4488 | Those who have abandoned God cling that much more firmly to the faith in morality [Nietzsche] |
4502 | Morality cannot survive when the God who sanctions it is missing [Nietzsche] |
4499 | Primitive Christianity is abolition of the state; it is opposed to defence, justice, patriotism and class [Nietzsche] |