discrete category of sets
This category provides an example of a large discrete category.
Satisfied Properties
Assigned properties
Deduced properties
- is direct
- is essentially discrete
- is locally small
- is skeletal
- is inverse
- is a groupoid
- is thin
- has connected limits
- is locally essentially small
- has sequential limits
- is one-way
- has connected colimits
- has sequential colimits
- has reflexive coequalizers
- is Cauchy complete
- has sifted colimits
- has directed limits
- is left cancellative
- is mono-regular
- has pullbacks
- is self-dual
- is well-powered
- is locally cartesian closed
- has equalizers
- has wide pullbacks
- is regular-subobject-trivial
- is subobject-trivial
- has a generating set
- is locally finite
- has a generator
- is core-thin
- has binary powers
- has coreflexive equalizers
- has cosifted limits
- has directed colimits
- is epi-regular
- has pushouts
- is right cancellative
- is well-copowered
- is locally cocartesian coclosed
- has coequalizers
- has wide pushouts
- is regular-quotient-trivial
- is quotient-trivial
- has a cogenerating set
- has a cogenerator
- has binary copowers
- has effective cocongruences
- has effective congruences
- has quotients of congruences
- has filtered colimits
- has an extremal generator
- has an extremal generating set
- is balanced
- has cofiltered limits
- has kernel pairs
- is concretizable
- is gaunt
- has coquotients of cocongruences
- has an extremal cogenerator
- has an extremal cogenerating set
- has cokernel pairs
- has coequalizers of kernel pairs
- has filtered-colimit-stable monomorphisms
- has ℵ₁-filtered colimits
- has equalizers of cokernel pairs
- has cofiltered-limit-stable epimorphisms
- has ℵ₁-cofiltered limits
Unsatisfied Properties
Assigned properties
- is not essentially small
Deduced properties*
- does not have a multi-initial object
- is not accessible
- is not semi-strongly connected
- is not small
- is not essentially countable
- does not have a multi-terminal object
- is not coaccessible
- is not locally presentable
- is not ℵ₁-accessible
- is not locally multi-presentable
- is not locally poly-presentable
- is not multi-complete
- does not have a terminal object
- is not strongly connected
- is not essentially finite
- is not countable
- is not locally copresentable
- is not multi-cocomplete
- does not have an initial object
- does not have a natural numbers object
- is not locally ℵ₁-presentable
- is not Grothendieck abelian
- is not finitely accessible
- is not locally finitely multi-presentable
- is not a generalized variety
- is not multi-algebraic
- is not complete
- does not have zero morphisms
- is not core-connected
- is not trivial
- is not connected
- is not pointed
- does not have a strict initial object
- does not have finite products
- does not have finite powers
- is not finite
- is not a Grothendieck topos
- is not cocomplete
- does not have a strict terminal object
- does not have finite coproducts
- does not have finite copowers
- is not unital
- does not have a parametrized natural numbers object
- is not locally finitely presentable
- is not finitary algebraic
- is not preadditive
- is not additive
- does not have biproducts
- is not cartesian closed
- does not have products
- is not finitely complete
- does not have disjoint finite coproducts
- is not infinitary distributive
- is not countably distributive
- is not distributive
- does not have kernels
- does not have cartesian filtered colimits
- does not satisfy CIP
- is not extensive
- is not sifted
- is not normal
- does not have countable products
- does not have countable powers
- is not total
- is not counital
- is not cocartesian coclosed
- does not have coproducts
- is not finitely cocomplete
- does not have disjoint finite products
- is not infinitary codistributive
- is not countably codistributive
- is not codistributive
- does not have cokernels
- does not have cocartesian cofiltered limits
- does not satisfy CSP
- is not coextensive
- is not cosifted
- is not conormal
- does not have countable coproducts
- does not have countable copowers
- is not cototal
- is not Malcev
- is not abelian
- is not one-sorted finitary algebraic
- is not regular
- does not have disjoint coproducts
- does not have exact filtered colimits
- is not countably extensive
- is not infinitary extensive
- is not filtered
- does not have binary coproducts
- does not have ℵ₂-small products
- does not have ℵ₂-small powers
- does not have a subobject classifier
- does not have a regular subobject classifier
- is not an elementary topos
- is not a pretopos
- is not a quasitopos
- is not co-Malcev
- is not coregular
- does not have disjoint products
- does not have exact cofiltered limits
- is not countably coextensive
- is not infinitary coextensive
- is not cofiltered
- does not have binary products
- does not have ℵ₂-small coproducts
- does not have ℵ₂-small copowers
- does not have a quotient object classifier
- does not have a regular quotient object classifier
- is not split abelian
- is not Barr-exact
- is not ℵ₁-filtered
- does not have powers
- is not Barr-coexact
- is not ℵ₁-cofiltered
- does not have copowers
*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