category of pseudo-metric spaces with non-expansive maps
- notation:
- objects: pseudo-metric spaces
- morphisms: non-expansive maps , meaning for all
- Related categories:
In contrast to metric spaces, we do not demand here.
Satisfied Properties
Properties from the database
- has binary products
- has coequalizers
- has a cogenerator
- has directed colimits
- has equalizers
- has exact filtered colimits
- has a generator
- is locally small
- is semi-strongly connected
- has a strict initial object
- has a terminal object
- is well-copowered
- is well-powered
Deduced properties
- has coreflexive equalizers
- has finite products
- is finitely complete
- has pullbacks
- is Cauchy complete
- has filtered colimits
- has finite powers
- has binary powers
- is connected
- has a multi-terminal object
- has cartesian filtered colimits
- has an initial object
- is locally essentially small
- has a generating set
- is inhabited
- is filtered
- is sifted
- has reflexive coequalizers
- has sifted colimits
- has sequential colimits
- has a multi-initial object
- has a cogenerating set
- is cosifted
- is cofiltered
Unsatisfied Properties
Properties from the database
- is not balanced
- does not have binary copowers
- is not cartesian closed
- does not have countable powers
- is not essentially small
- is not Malcev
- does not have a natural numbers object
- is not skeletal
- does not have a strict terminal object
Deduced properties*
- does not have countable products
- does not have products
- does not have cofiltered limits
- is not complete
- does not have wide pullbacks
- does not have connected limits
- is not essentially finite
- does not have sequential limits
- does not have directed limits
- does not have powers
- is not small
- is not finite
- is not essentially countable
- is not countable
- is not a groupoid
- is not mono-regular
- is not normal
- is not direct
- is not abelian
- is not Grothendieck abelian
- is not split abelian
- is not discrete
- is not essentially discrete
- is not trivial
- is not pointed
- does not have zero morphisms
- does not have kernels
- does not have biproducts
- is not preadditive
- is not additive
- is not thin
- is not right cancellative
- is not one-way
- is not locally multi-presentable
- is not locally finitely multi-presentable
- is not locally poly-presentable
- is not multi-algebraic
- is not locally strongly finitely presentable
- is not finitary algebraic
- is not an elementary topos
- does not have a subobject classifier
- is not locally cartesian closed
- is not a Grothendieck topos
- is not countably distributive
- is not infinitary distributive
- is not infinitary extensive
- is not strongly connected
- is not unital
- is not left cancellative
- does not have cosifted limits
- does not have cokernels
- does not have binary coproducts
- does not have finite coproducts
- does not have disjoint finite coproducts
- does not have disjoint coproducts
- is not distributive
- is not extensive
- does not have coproducts
- does not have pushouts
- does not have countable coproducts
- is not cocomplete
- is not locally finitely presentable
- is not locally ℵ₁-presentable
- is not locally presentable
- is not finitely cocomplete
- does not have wide pushouts
- does not have connected colimits
- does not have finite copowers
- does not have countable copowers
- does not have copowers
- is not multi-cocomplete
- does not have disjoint products
- does not have disjoint finite products
- does not have cocartesian cofiltered limits
- is not infinitary codistributive
- is not countably codistributive
- is not codistributive
- is not infinitary coextensive
- is not cocartesian coclosed
- is not coextensive
- is not coregular
- is not epi-regular
- is not conormal
- is not inverse
- is not locally copresentable
- does not have a quotient object classifier
- does not have a regular quotient object classifier
- is not locally cocartesian coclosed
- is not co-Malcev
- is not counital
- is not self-dual
*This also uses the deduced satisfied properties.
Unknown properties
There are 8 properties for which the database doesn't have an answer if they are satisfied or not. Please help to contribute the data!
Special objects
- terminal object: singleton space
- initial object: empty pseudo-metric space
- products: [finite case] direct products with the pseudo-metric
Special morphisms
- isomorphisms: bijective isometries
- monomorphisms: injective non-expansive maps
- epimorphisms: surjective non-expansive maps
- regular monomorphisms:
- regular epimorphisms: