Coherent Activation and Scale Shift Formal Definition of CoAct in Basic Ontodynamics

This paper provides a formal definition of Coherent Activation (CoAct) within the framework of Basic Ontodynamics. CoAct is defined as a critical transition on a regime manifold endowed with a coherence metric. The transition occurs when (i) a coherence threshold is exceeded and (ii) admissible transverse regime generators are exhausted. Objects are defined as bounded post-CoAct trajectory segments on scale-shifted manifolds. The formulation maintains ontological minimalism and introduces no primitive notions of time or substance.