
Universal properties can be read as the transport of equality-based uniqueness "forall x, exists unique y, P(x,y)" to a categorical regime where object-level uniqueness is relaxed to "up to isomorphism." In many semantic models motivated by computation, physics, and resource-sensitive reasoning, even isomorphism is too rigid: exchange can be lossy or irreversible, and unavoidable overhead breaks strict commutativity conditions. This paper develops "distorted universality," where universal constructions are required to exist and be unique only modulo a monoidal congruence generated by a pair of distortion operators (Lambda, sigma): a defect/overhead operator Lambda: id => id and a constrained exchange sigma: tensor => tensor o tau. We emphasize necessity and usefulness: distorted universality restores canonical constructions in over-refined categories (e.g. cost-annotated morphisms), supports non-invertible exchange while preserving a universal calculus via quotient categories, and clarifies the two-layer methodology in which canonicality is proved in a quotient while optimization and budgeting live in the original category. We also isolate optional coherence regimes for sigma (braided/symmetric "up to" the congruence) to ensure that exchange behaves as intended in the quotient.
Distorted universality, Quotient categories, Linear logic, Monoidal categories, Category theory, Universal properties, Resource semantics
Distorted universality, Quotient categories, Linear logic, Monoidal categories, Category theory, Universal properties, Resource semantics
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