Single Idea 15883

[catalogued under 10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds]

Full Idea

Leibniz sets up increasingly stringent conditions possible worlds must meet. The weakest is non-contradiction, for truths of reason; then sufficient reason, for rational worlds; then identity of indiscernibles, for duplicates; then compossibility.

Gist of Idea

Leibniz narrows down God's options to one, by non-contradiction, sufficient reason, indiscernibles, compossibility

Source

report of Gottfried Leibniz (works [1690]) by Rom Harré - Laws of Nature 4

Book Reference

Harré,Rom: 'Laws of Nature' [Duckworth 1993], p.83


A Reaction

[my summary of a very nice two pages by Harré] God is the source of the principles which do the narrowing down.