4 ideas
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
12887 | A whole must have one characteristic, an internal relation, and a structure [Rescher/Oppenheim] |
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] |