Implication Details
Assumptions: countable
Conclusions: essentially countable
Proof: This is trivial.
Show 57 categories using this implication
- category of abelian groups
- category of algebras
- delooping of an infinite countable group
- delooping of the additive monoid of natural numbers
- delooping of the additive monoid of ordinal numbers
- category of Banach spaces with linear contractions
- category of commutative algebras
- category of commutative monoids
- category of commutative rings
- category of small categories
- category of compact Hausdorff spaces
- simplex category
- category of fields
- category of free abelian groups
- category of groups
- category of countable groups
- category of Hausdorff spaces
- category of Jónsson-Tarski algebras
- category of locally ringed spaces
- category of M-sets
- category of smooth manifolds
- category of measurable spaces
- category of metric spaces with non-expansive maps
- category of metric spaces with continuous maps
- category of metric spaces with ∞ allowed
- category of monoids
- poset of natural numbers
- poset of extended natural numbers
- poset of ordinal numbers
- category of pseudo-metric spaces with non-expansive maps
- category of posets
- category of prosets
- category of left modules over a ring
- category of left modules over a division ring
- category of sets and relations
- category of rings
- category of rngs
- category of schemes
- category of semigroups
- category of sets
- category of countable sets
- category of sets with finite-to-one maps
- category of pointed sets
- category of non-empty sets
- category of pairs of sets
- category of sheaves
- category of abelian sheaves
- category of combinatorial species
- category of topological spaces
- category of pointed topological spaces
- category of torsion abelian groups
- category of torsion-free abelian groups
- category of vector spaces
- category of Z-functors
- proset of integers w.r.t. divisibility
- poset [0,1]
- category of simplicial sets