4 ideas
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
10414 | Abstract objects are constituted by encoded collections of properties [Zalta, by Swoyer] |
10415 | Properties make round squares and round triangles distinct, unlike exemplification [Zalta, by Swoyer] |
16570 | Elements are found last in dismantling bodies, and first in generating them [Albert of Saxony] |