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Queen of Diamonds
the ontological and a priori family

The Cartesian Ontological Argument

Rene Descartes
Meditationes de prima philosophia (Meditations on First Philosophy)

The Cartesian Ontological Argument, card face
DemonstrativeConcludes that something exists.
Argument form
Modus ponens (P3 is the universal; P1–P2 instantiate it)
Concludes to
God as such (a supremely perfect being, existing necessarily)
Premise ground
Conceptual (necessary existence belongs to the true and immutable nature of a supremely perfect being)
Modal strength
Necessary
What it licenses
  • maximal perfection (supremely perfect)
  • necessary
Period
Seventeenth Century (1641)
Tradition
Cartesian

Further reading

This formulation is ours, composed from the primary source and compressed to fit the card; the argument admits of other statements. Objections have been made to every argument in the deck; where one is linked above, it is chosen by us, not written by us.

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