4 ideas
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
19508 | Contextualism needs a semantics for knowledge sentences that are partly indexical [Schiffer,S] |
19509 | The indexical aspect of contextual knowledge might be hidden, or it might be in what 'know' means [Schiffer,S] |
20363 | Leaves are unequal, but we form the concept 'leaf' by discarding their individual differences [Nietzsche] |