6 ideas
23647 | Objects have an essential constitution, producing its qualities, which we are too ignorant to define [Reid] |
7803 | Modal logic began with translation difficulties for 'If...then' [Lewis,CI, by Girle] |
19440 | How do you know you have conceived a thing deeply enough to assess its possibility? [Vaidya] |
11958 | Impossibilites are easily conceived in mathematics and geometry [Reid, by Molnar] |
23646 | Reference is by name, or a term-plus-circumstance, or ostensively, or by description [Reid] |
23645 | A word's meaning is the thing conceived, as fixed by linguistic experts [Reid] |