6 ideas
9355 | One sort of circularity presupposes a premise, the other presupposes a rule being used [Braithwaite, by Devitt] |
7791 | The simplest of the logics based on possible worlds is Lewis's S5 [Lewis,CI, by Girle] |
18253 | I wish to go straight from cardinals to reals (as ratios), leaving out the rationals [Frege] |
18166 | The loss of my Rule V seems to make foundations for arithmetic impossible [Frege] |
18269 | Logical objects are extensions of concepts, or ranges of values of functions [Frege] |
11002 | Equating necessity with informal provability is the S4 conception of necessity [Lewis,CI, by Read] |