Existence_Fixed_Point_of_Constraint_Generated_Reality

This paper proves the existence of a fixed point for constraint-generated reality. It shows that once admissibility, standing conservation, and scope invariance are enforced, the space of permissible descriptions converges to a stable, non-degenerate fixed point that admits no further admissible extension or re-anchoring. All apparent alternatives either collapse into this fixed point or violate admissibility by exhaustion. The result establishes existence and stability without construction, dynamics, or iterative procedures. No algorithms or generative methods are provided; the argument is necessity-based and post-exhaustive.