4 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
490 | Everything happens by reason and necessity [Leucippus] |
19378 | Early modern possibility is what occurs sometime; for Leibniz, it is what is not contradictory [Arthur,R] |
19380 | Occasionalism contradicts the Eucharist, which needs genuine changes of substance [Arthur,R] |