25 ideas
15957 | Essential definitions show the differences that discriminate things, and make them what they are [Boyle] |
21544 | It seems that when a proposition is false, something must fail to subsist [Russell] |
21539 | Excluded middle can be stated psychologically, as denial of p implies assertion of not-p [Russell] |
21538 | If two people perceive the same object, the object of perception can't be in the mind [Russell] |
21534 | The only thing we can say about relations is that they relate [Russell] |
21540 | Relational propositions seem to be 'about' their terms, rather than about the relation [Russell] |
15965 | Boyle attacked a contemporary belief that powers were occult things [Boyle, by Alexander,P] |
16735 | In the 17th century, 'disposition' usually just means the spatial arrangement of parts [Boyle, by Pasnau] |
21536 | When I perceive a melody, I do not perceive the notes as existing [Russell] |
21535 | Objects only exist if they 'occupy' space and time [Russell] |
16034 | Form is not a separate substance, but just the manner, modification or 'stamp' of matter [Boyle] |
15953 | To cite a substantial form tells us what produced the effect, but not how it did it [Boyle] |
21533 | Contingency arises from tensed verbs changing the propositions to which they refer [Russell] |
21537 | I assume we perceive the actual objects, and not their 'presentations' [Russell] |
15962 | Boyle's term 'texture' is not something you feel, but is unobservable structures of particles [Boyle, by Alexander,P] |
15964 | Boyle's secondary qualities are not illusory, or 'in the mind' [Boyle, by Alexander,P] |
21532 | Full empiricism is not tenable, but empirical investigation is always essential [Russell] |
15960 | Explanation is deducing a phenomenon from some nature better known to us [Boyle] |
21542 | Do incorrect judgements have non-existent, or mental, or external objects? [Russell] |
21541 | The complexity of the content correlates with the complexity of the object [Russell] |
21543 | If p is false, then believing not-p is knowing a truth, so negative propositions must exist [Russell] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
15952 | The corpuscles just have shape, size and motion, which explains things without 'sympathies' or 'forces' [Boyle, by Alexander,P] |
15972 | The corpuscular theory allows motion, but does not include forces between the particles [Boyle, by Alexander,P] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |