Abstract
This presentation explores the fundamental categorical presuppositions of quantum theory —i.e., its philosophical first principles, two of which find their correlative reflection in the categorical presuppositions of Islamic and Judeo-Christian philosophical theology: [1] the universality of logical causality, by which the reasonableness of the universe is presupposed; this is exemplified in quantum mechanics as the presupposed universality of the axioms of propositional logic—viz., the presupposition of an orthonormal measurement basis / Boolean algebra of observables in quantum measurement; [2] the presupposition of both primordial and consequent cosmogonic states of reality, reflected microcosmically as the presupposition of initial and final system states in quantum measurement.