9 ideas
18823 | To say there could have been people who don't exist, but deny those possible things, rejects Barcan [Stalnaker, by Rumfitt] |
15990 | Every individual thing which exists has an essence, which is its internal constitution [Locke] |
16409 | Unlike Lewis, I defend an actualist version of counterpart theory [Stalnaker] |
16411 | If possible worlds really differ, I can't be in more than one at a time [Stalnaker] |
16412 | If counterparts exist strictly in one world only, this seems to be extreme invariant essentialism [Stalnaker] |
15994 | If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke] |
16410 | Extensional semantics has individuals and sets; modal semantics has intensions, functions of world to extension [Stalnaker] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |