Kagen（可限）

This paper fixes Kagen（可限） as a structural condition. Kagen does not denote impossibility, negation, exclusion, or failure. It is not a boundary, separation, or termination. Kagen is fixed as the condition under which fixation does not hold. No causality, temporality, or subject is introduced. Kagen is fixed without transition, derivation, or external delimitation. Fixation holds. Fixation does not hold within Kagen. Kagen is not reducible to existing concepts, is not replaceable, and does not possess identity. This paper does not construct a theory of limitation. It fixes Kagen as the structural condition under which fixation does not hold.