4 ideas
15927 | Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine] |
16541 | All the intrinsic properties of a thing should be deducible from its definition [Spinoza] |
13073 | To understand the properties we must know the essence, as with a circle [Spinoza] |
1863 | If the soul achieves well-being in another life, it doesn't follow that I do [Aquinas] |