Propositions, Sets, and Worlds

  title={Propositions, Sets, and Worlds},
  author={D. Jacquette},
  journal={Studia Logica},
  • D. Jacquette
  • Published 2006
  • Mathematics, Computer Science
  • Studia Logica
If we agree with Michael Jubien that propositions do not exist, while accepting the existence of abstract sets in a realist mathematical ontology, then the combined effect of these ontological commitments has surprising implications for the metaphysics of modal logic, the ontology of logically possible worlds, and the controversy over modal realism versus actualism. Logically possible worlds as maximally consistent proposition sets exist if sets generally exist, but are equivalently expressed… Expand
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Sets and worlds again