Structure

walking isomorphism

Notation Isom\Isom Objects two objects 00 and 11 Morphisms identities, and two morphisms 0→10 \to 1 and 1→01 \to 0 that are mutually inverse Related 1\1, Split\Split, II External nLab link
This category can be pictured as: {0⇄1}\{0 \rightleftarrows 1\} Its name comes from the fact that a functor Isom→C\Isom \to \C is the same as an isomorphism in C\C. The walking isomorphism is actually equivalent to the trivial category.

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

  • terminal object: both objects
  • initial object: both objects
  • products: 0×0=00 \times 0 = 0
  • coproducts: 0⊔0=00 \sqcup 0 = 0

Special morphisms

Functors

The database stores 1 functor based on the walking isomorphism.