11 pages matching affirmative existential proposition in this book
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Chapter Twos Syntactical Considerations
The First Premise
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actual world affirmative existential proposition Anselm argued assertion assume assumption atheist believe Brouwersche system causally impossible cease to exist chapter conceptual system depends exist is causally existence is logically external question F-ing factually necessary false follows giraffes God's existence God's nonexistence Hartshorne hypothetical syllogism imagine implies individual inference instance of Axiom knows all truths language-game linguistic framework logical necessity logically contingent logically impossible logically necessary existence logically necessary truth logically possible Malcolm Malcolm's argument mean modal argument modal logic modal operators modus ponens neces necessarily numbers ontological argument Penelhum perfect conception perfect knower Perhaps Phillips philosophers Plantinga plausible possible world predicate Premise presumed presumption proof propositional calculus Proslogion provable proved real world reason regard relation of accessibility religious Robert Merrihew Adams sary self-contradictory sense sentences solely by virtue Substitution instance suppose systems of modal Terence Penelhum theory true solely valid virtue of meaning-rules Yahweh