24 ideas
10282 | Logic is the study of sound argument, or of certain artificial languages (or applying the latter to the former) [Hodges,W] |
10283 | A formula needs an 'interpretation' of its constants, and a 'valuation' of its variables [Hodges,W] |
10284 | There are three different standard presentations of semantics [Hodges,W] |
10285 | I |= φ means that the formula φ is true in the interpretation I [Hodges,W] |
10288 | Down Löwenheim-Skolem: if a countable language has a consistent theory, that has a countable model [Hodges,W] |
10289 | Up Löwenheim-Skolem: if infinite models, then arbitrarily large models [Hodges,W] |
10287 | If a first-order theory entails a sentence, there is a finite subset of the theory which entails it [Hodges,W] |
10286 | A 'set' is a mathematically well-behaved class [Hodges,W] |
7861 | Libet says the processes initiated in the cortex can still be consciously changed [Libet, by Papineau] |
6660 | Libet found conscious choice 0.2 secs before movement, well after unconscious 'readiness potential' [Libet, by Lowe] |
21233 | The beautiful is whatever it is intrinsically good to admire [Moore,GE] |
8039 | Moore tries to show that 'good' is indefinable, but doesn't understand what a definition is [MacIntyre on Moore,GE] |
22151 | The Open Question argument leads to anti-realism and the fact-value distinction [Boulter on Moore,GE] |
11056 | The naturalistic fallacy claims that natural qualties can define 'good' [Moore,GE] |
8033 | Moore cannot show why something being good gives us a reason for action [MacIntyre on Moore,GE] |
8032 | Can learning to recognise a good friend help us to recognise a good watch? [MacIntyre on Moore,GE] |
11050 | Moore's combination of antinaturalism with strong supervenience on the natural is incoherent [Hanna on Moore,GE] |
23726 | Despite Moore's caution, non-naturalists incline towards intuitionism [Moore,GE, by Smith,M] |
18676 | We should ask what we would judge to be good if it existed in absolute isolation [Moore,GE] |
11057 | It is always an open question whether anything that is natural is good [Moore,GE] |
5925 | The three main values are good, right and beauty [Moore,GE, by Ross] |
5902 | For Moore, 'right' is what produces good [Moore,GE, by Ross] |
5903 | 'Right' means 'cause of good result' (hence 'useful'), so the end does justify the means [Moore,GE] |
5907 | Relationships imply duties to people, not merely the obligation to benefit them [Ross on Moore,GE] |