23 ideas
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] |
17423 | The essence of natural numbers must reflect all the functions they perform [Sicha] |
17425 | To know how many, you need a numerical quantifier, as well as equinumerosity [Sicha] |
17424 | Counting puts an initial segment of a serial ordering 1-1 with some other entities [Sicha] |
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] |
7720 | Two things can only resemble one another in some respect, and that may reintroduce a universal [Lowe] |
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] |
7712 | On substances, Leibniz emphasises unity, Spinoza independence, Locke relations to qualities [Lowe] |
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] |
7710 | Perception is a mode of belief-acquisition, and does not involve sensation [Lowe] |
7711 | Science requires a causal theory - perception of an object must be an experience caused by the object [Lowe] |
21532 | Full empiricism is not tenable, but empirical investigation is always essential [Russell] |
7714 | Personal identity is a problem across time (diachronic) and at an instant (synchronic) [Lowe] |
21542 | Do incorrect judgements have non-existent, or mental, or external objects? [Russell] |
7715 | Mentalese isn't a language, because it isn't conventional, or a means of public communication [Lowe] |
21541 | The complexity of the content correlates with the complexity of the object [Russell] |
7722 | If meaning is mental pictures, explain "the cat (or dog!) is NOT on the mat" [Lowe] |
21543 | If p is false, then believing not-p is knowing a truth, so negative propositions must exist [Russell] |