This thinker posited that a list of a substance's predications make up a complete notion of the substance.
This thinker posited that a list of a substance's predications make up a complete notion of the substance. His namesake law states that if two objects have exactly the same properties, then they are the same object. Those ideas are his Predicate-in-Notion Principle and his concept of the Identity of Indiscernibles. He posited the existence of simple substances that interact with each other via the Principle of (*) Pre-Established Harmony; said substances also being nonextendable, indivisible, and windowless. This author of Discourse on Metaphysics stated that everything happens for a reason, which is his Principle of Sufficient Reason. For 10 points, name this author of Monadology, who asserted that God must have created the best of all possible worlds in his Theodicy.
This thinker posited that a list of a substance's predications make up a complete notion of the substance.
Gottfried Wilhelm Leibniz [or Gottfried Wilhelm von Leibniz]