4 ideas
7726 | Aristotelian logic dealt with inferences about concepts, and there were also proposition inferences [Weiner] |
14742 | It can't be indeterminate whether x and y are identical; if x,y is indeterminate, then it isn't x,x [Salmon,N] |
18284 | Particulars can be verified or falsified, but general statements can only be falsified (conclusively) [Popper] |
18885 | Kripke and Putnam made false claims that direct reference implies essentialism [Salmon,N] |