David Cohen, in his book An Introduction to Space and Quantum Logic, diagrams an arrangement of rationale for quantum mechanics dependent on space hypothesis called quantum rationale [1]. While quantum rationale is positively one intriguing vantage point from which to direct a careful numerical investigation of quantum mechanics, such an examination falls outside the talk of this paper. Notwithstanding, we furnish a prologue to quantum rationale fully intent on furnishing the peruser with an establishment from which to direct further research.