3 ideas
3299 | In logic identity involves reflexivity (x=x), symmetry (if x=y, then y=x) and transitivity (if x=y and y=z, then x=z) [Baillie] |
14380 | The distinction between necessary and essential properties can be ignored [Rocca] |
20698 | Irenaeus says evil is necessary for perfect human development [Irenaeus, by Davies,B] |