7 ideas
6855 | Interesting philosophers hardly every give you explicitly valid arguments [Martin,M] |
6856 | Valid arguments can be rejected by challenging the premises or presuppositions [Martin,M] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
6857 | An error theory of perception says our experience is not as it seems to be [Martin,M] |
22974 | Presentists lack the materials for a realist view of change [Price,H] |
22973 | The present moment, time's direction, and time's dynamic quality seem to be objective facts [Price,H] |
22975 | We must explain either the existence of a time direction, or our psychological sense of it [Price,H] |