| NormRing |
normed (commutative) rings |
short group maps |
| Op(FinCartSp) |
open sets of finite-dimensional Cartesian spaces |
inclusions |
| Operad |
symmetric multicategories |
multifunctors |
| PDiff |
piecewise-differentiable manifolds |
piecewise-continuous maps |
| PL |
piecewise-linear manifolds |
piecewise-continuous maps |
| PROP |
monoidal product & permutation categories |
eso strict monoidal functors |
| Perm |
the natural numbers |
permutations |
| PermCat |
permutative (symmetric strict monoidal) categories |
multilinear functors |
| Pfn |
sets |
partial maps |
| Poiss |
smooth manifolds with Poisson structures |
Poisson maps |
| Pos |
partial orders |
monotone maps |
| PrCat |
locally presentable categories |
left adjoint functors |
| PreOrd |
preorders |
monotone maps |
| Prof |
categories |
profunctors |
| Pros |
preorders |
monotone maps |
| PseudoMet |
pseudometric spaces |
short maps |
| Quant |
quantales |
suplattice maps |
| Quiv |
quivers |
graph maps |
| R+ |
non-negative real numbers |
addition |
| RCat |
restriction categories |
functors |
| RT(K₁) |
the natural numbers |
partial realizable maps |
| RT(K₂) |
sequences of natural numbers |
partial realizable maps |
| Rel |
sets |
relations |
| Rex |
finitely cocomplete categories |
right exact functors |
| Ring |
rings |
ring maps |
| Rng |
nonunital rings |
nonunital ring maps |
| SAb |
simplicial Abelian groups |
group maps |
| SES(Ab) |
short exact sequences of Abelian groups |
commuting diagrams |
| SGrp |
simplicial groups |
group maps |
| SLieAlg_k |
simplicial Lie algebras over vector spaces over fields k |
linear maps |
| SMan |
simplicial smooth manifolds |
smooth maps |
| SRing |
simplicial rings |
ring maps |
| SSet |
simplicial sets |
simplicial maps |
| STop |
simplicial topological spaces |
continuous maps |
| STopGrp |
simplicial topological groups |
continuous group maps |
| SemiGrp |
semigroups |
semigroup maps |
| SemiLat |
semilattices |
semilattice maps |
| SemiRing |
semirings (rigs) |
semiring maps |
| Set |
sets |
maps |
| Set* |
pointed sets |
based maps |
| Sierp |
maps |
commuting squares |
| SimpCat |
simplicially enriched categories |
simplicially enriched functors |
| SoberTop |
sober topological spaces |
continuous maps |
| SpLoc |
spatial locales |
continuous maps |
| Span(Grpd) |
groupoids |
spans of tame functors |
| Span(Set) |
sets |
spans of functions |
| Species |
species |
natural transformations |
| Spectra |
topological spectra |
spectrum maps |
| Ste |
stereotype spaces |
continuous maps |
| Stone |
Stone spaces |
continuous maps |
| SupLat |
suplattices |
suplattice maps |
| SupLieAlg_k |
Lie algebras over super vector spaces over fields k |
super linear maps |
| SupVect_k |
super vector spaces over fields k |
super linear maps |
| Surj |
sets |
surjections |
| SymCat |
symmetric monoidal categories |
lax monoidal functors |
| SymLMet |
symmetric Lawvere metric spaces |
short maps |
| SymmMonCat |
symmetric monoidal categories |
lax monoidal functors |
| SymmRel |
sets |
symmetric relations |
| Top |
topological spaces |
continuous maps |
| Top* |
pointed topological spaces |
based continuous maps |
| TopCat |
topologically enriched categories |
continuous functors |
| TopGrp |
topological groups |
continuous group maps |
| TopMan |
topological manifolds |
continuous maps |
| TopMon |
topological monoids |
continuous monoid maps |
| TopRing |
topological rings |
continuous ring maps |
| TopVect |
topological vector spaces |
linear maps |
| Topos |
topoi |
geometric arrows |
| Tor |
Torsion groups |
group maps |
| TracedSymmMonCat |
traced symmetric monoidal categories |
lax monoidal functors |
| Tych |
Tychonoff spaces |
continuous maps |
| Vect_k |
vector spaces over fields k |
linear maps |
| nCob |
(n-1)-dimensional compact oriented manifolds |
n-dimensional cobordisms |
| Δ |
the inhabited simplices |
monotone maps |
| Ω |
the inhabited trees |
tree maps |
| □ |
the inhabited cubes |
cubical maps |