Epireflections and Supercompact Cardinals

نویسندگان

  • JOAN BAGARIA
  • CARLES CASACUBERTA
  • ADRIAN R. D. MATHIAS
چکیده

We prove that the existence of arbitrarily large supercompact cardinals implies that every absolute epireflective class of objects in a balanced accessible category is a small-orthogonality class. In other words, if L is a localization functor on a balanced accessible category such that the unit morphism X → LX is an epimorphism for all X and the class of L-local objects is defined by an absolute formula, then the existence of a sufficiently large supercompact cardinal implies that L is a localization with respect to some set of morphisms.

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تاریخ انتشار 2008