category of coproducts of Euclidean spaces
By definition, this is the full subcategory of (or ) where every space is isomorphic to for a family of natural numbers . These are locally Euclidean spaces in the strongest possible sense. This category provides an example of an infinitary distributive category that is not Cauchy complete. Using the fact that Euclidean spaces are connected, it is easy to see that this category is the free coproduct cocompletion of the category of Euclidean spaces.
Satisfied Properties
Assigned properties
- is locally small
- has finite products
- is infinitary extensive
- is well-powered
- is well-copowered
- is semi-strongly connected
- has an extremal generator
- has an extremal cogenerator
- has effective cocongruences
- has coquotients of cocongruences
Deduced properties
- is connected
- has coproducts
- is countably extensive
- is infinitary distributive
- has an extremal generating set
- has a generator
- has binary products
- has a terminal object
- has finite powers
- is locally essentially small
- has a cogenerator
- has an extremal cogenerating set
- has a multi-terminal object
- is inhabited
- is countably distributive
- has countable coproducts
- is extensive
- is ℵ₁-filtered
- has a generating set
- has binary powers
- has a cogenerating set
- has copowers
- has ℵ₂-small coproducts
- has a parametrized natural numbers object
- is distributive
- has finite coproducts
- has disjoint finite coproducts
- has a strict initial object
- is filtered
- is concretizable
- is cosifted
- has ℵ₂-small copowers
- has countable copowers
- has a natural numbers object
- has disjoint coproducts
- is sifted
- has an initial object
- has binary coproducts
- has finite copowers
- has a multi-initial object
- is ℵ₁-cofiltered
- has binary copowers
- is cofiltered
Unsatisfied Properties
Assigned properties
- is not skeletal
- is not balanced
- is not Cauchy complete
- does not have countable powers
- does not have kernel pairs
- does not have cokernel pairs
- does not have quotients of congruences
Deduced properties*
- is not accessible
- is not left cancellative
- is not cartesian closed
- does not have reflexive coequalizers
- is not core-thin
- is not discrete
- does not have equalizers
- is not multi-complete
- does not have sequential colimits
- does not have ℵ₁-filtered colimits
- is not mono-regular
- does not have countable products
- does not have ℵ₂-small powers
- does not have sequential limits
- does not have pullbacks
- does not have coequalizers of kernel pairs
- is not gaunt
- is not direct
- is not one-way
- is not coaccessible
- is not right cancellative
- does not have coequalizers
- is not multi-cocomplete
- does not have ℵ₁-cofiltered limits
- is not epi-regular
- does not have pushouts
- does not have equalizers of cokernel pairs
- is not inverse
- is not self-dual
- does not have a strict terminal object
- is not locally presentable
- is not ℵ₁-accessible
- is not locally multi-presentable
- is not locally finitely multi-presentable
- is not locally poly-presentable
- is not multi-algebraic
- is not locally cartesian closed
- is not complete
- is not finitely complete
- is not regular
- does not have effective congruences
- is not trivial
- does not have coreflexive equalizers
- is not subobject-trivial
- does not have directed limits
- does not have filtered colimits
- does not have sifted colimits
- is not a groupoid
- is not normal
- does not have ℵ₂-small products
- does not have powers
- does not have connected limits
- does not have wide pullbacks
- does not have a subobject classifier
- is not thin
- is not an elementary topos
- is not locally copresentable
- is not locally cocartesian coclosed
- is not cocomplete
- is not finitely cocomplete
- is not coregular
- is not coextensive
- is not countably codistributive
- is not quotient-trivial
- is not countably coextensive
- does not have directed colimits
- does not have cofiltered limits
- is not conormal
- does not have connected colimits
- does not have wide pushouts
- does not have a quotient object classifier
- is not Malcev
- is not unital
- is not pointed
- is not locally finitely presentable
- is not locally ℵ₁-presentable
- is not Grothendieck abelian
- is not finitely accessible
- is not finitary algebraic
- is not abelian
- is not a generalized variety
- is not Barr-exact
- is not core-connected
- is not essentially discrete
- does not have exact filtered colimits
- does not have cartesian filtered colimits
- does not have filtered-colimit-stable monomorphisms
- does not have products
- does not have a regular subobject classifier
- is not regular-subobject-trivial
- is not regular-quotient-trivial
- is not essentially finite
- is not a quasitopos
- is not a Grothendieck topos
- is not total
- is not co-Malcev
- is not counital
- is not cocartesian coclosed
- is not additive
- is not Barr-coexact
- does not have disjoint finite products
- is not infinitary codistributive
- is not codistributive
- does not have exact cofiltered limits
- does not have cocartesian cofiltered limits
- does not have cofiltered-limit-stable epimorphisms
- is not infinitary coextensive
- does not have cosifted limits
- does not have a regular quotient object classifier
- is not locally finite
- is not essentially small
- is not essentially countable
- is not cototal
- is not preadditive
- is not split abelian
- is not one-sorted finitary algebraic
- is not strongly connected
- does not satisfy CIP
- does not have zero morphisms
- is not small
- is not finite
- is not countable
- is not a pretopos
- does not have disjoint products
- does not satisfy CSP
- does not have biproducts
- does not have kernels
- does not have cokernels
*This also uses the deduced satisfied properties.
Unknown properties
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Special objects
- terminal object: singleton space
- initial object: empty space
- products: [finite case] direct product
- coproducts: disjoint union
Special morphisms
- isomorphisms: homeomorphisms
- monomorphisms: injective continuous maps
- epimorphisms: continuous maps with dense image
- regular monomorphisms:
- regular epimorphisms: