22 ideas
7719 | European philosophy consists of a series of footnotes to Plato [Whitehead] |
7791 | The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle] |
9358 | There are several logics, none of which will ever derive falsehoods from truth [Lewis,CI] |
9357 | Excluded middle is just our preference for a simplified dichotomy in experience [Lewis,CI] |
9364 | Names represent a uniformity in experience, or they name nothing [Lewis,CI] |
10656 | With 'extensive connection', boundary elements are not included in domains [Whitehead, by Varzi] |
15389 | In Whitehead 'processes' consist of events beginning and ending [Whitehead, by Simons] |
594 | Speusippus suggested underlying principles for every substance, and ended with a huge list [Speussipus, by Aristotle] |
11002 | Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read] |
9362 | Necessary truths are those we will maintain no matter what [Lewis,CI] |
7803 | Modal logic began with translation difficulties for 'If...then' [Lewis,CI, by Girle] |
9365 | We can maintain a priori principles come what may, but we can also change them [Lewis,CI] |
21500 | We rely on memory for empirical beliefs because they mutually support one another [Lewis,CI] |
21501 | If we doubt memories we cannot assess our doubt, or what is being doubted [Lewis,CI] |
6556 | If anything is to be probable, then something must be certain [Lewis,CI] |
21498 | Congruents assertions increase the probability of each individual assertion in the set [Lewis,CI] |
5828 | Extension is the class of things, intension is the correct definition of the thing, and intension determines extension [Lewis,CI] |
9361 | We have to separate the mathematical from physical phenomena by abstraction [Lewis,CI] |
15247 | Whitehead held that perception was a necessary feature of all causation [Whitehead, by Harré/Madden] |
9363 | Science seeks classification which will discover laws, essences, and predictions [Lewis,CI] |
16962 | Whitehead replaced points with extended regions [Whitehead, by Quine] |
2632 | Speusippus said things were governed by some animal force rather than the gods [Speussipus, by Cicero] |