category of sets and bijections

Notation Setbij\Set_{\bij} Objects sets Morphisms bijective maps Related Set\Set, B\IB, (Setbij)I(\Set_{\bij})^I

This is a typical example of a large groupoid, namely the core groupoid of the category of sets.

Satisfied Properties

Assigned properties

Deduced properties

Unsatisfied Properties

Assigned properties

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

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Special objects

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Special morphisms

  • isomorphisms: every morphism
  • monomorphisms: every morphism
  • epimorphisms: every morphism
  • regular monomorphisms: same as isomorphisms
  • regular epimorphisms: same as isomorphisms