This paper presents the Undifferentiated Domain Projection Theory (UDPT) v2. 22. 1, a minimal axiomatic framework for analyzing how difference, structure, and subject formation arise through projection operations from an undifferentiated limit (Ωₚhil). The theory introduces three core axioms: the Undifferentiated Demand Axiom (A1), the Projection Irreversibility Axiom (A2), and the Non-simultaneous Limit-Fixation Prohibition (A3). Two collapse directions are formalized: Ω-regression collapse (loss of distinguishability) and dual-axis BH collapse (over-fixation to a single binary axis). The subject-operation indicator σₛubj is introduced to distinguish subject formation from mere reflexive response and ego-fixation.
Daisuke Shimizu (Tue,) studied this question.