CatDat

walking morphism

This is also known as the interval category and can be pictured as: {01}\{0 \to 1\} It has the property that functors ICI \to \C are the same as morphisms in C\C, which explains its name.

Satisfied Properties

Assigned properties

Deduced properties

Unsatisfied Properties

Assigned properties

Deduced properties*

*This also uses the deduced satisfied properties.

Unknown properties

Special objects

  • terminal object: 11
  • initial object: 00
  • products: 0×x=00 \times x = 0, 1×x=x1 \times x = x
  • coproducts: 0x=x0 \sqcup x = x, 1x=11 \sqcup x = 1

Special morphisms

  • isomorphisms: the two identities
  • monomorphisms: every morphism
  • epimorphisms: every morphism
  • regular monomorphisms: same as isomorphisms
  • regular epimorphisms: same as isomorphisms