PFUSRC-095: Unified Projection Formulation of Four-Dimensional Flow Variables

Previous PFUSRC papers scattered various physical and mathematical formulas without unified ontological interpretation. This paper unifies all core equations under 45° biconical steady-state geometry, taking 4D flow variables as the fundamental ontology. It divides formulas into four tiers: slice, projection, dynamic-variable and flow-variable equations. Minkowski metric, Dirac equation, Euler’s identity, unary triple relation and Ramanujan tau function are all degenerated forms of the unified flow variable formula under different boundary limits. Traditional math relies static coordinate analysis, while PFUSRC describes full topological evolution of flow variables. No new axioms are added; all derivations inherit prior system conclusions.