H-Set
Backlinks
Endomorphism Monoid
Augmented Group
Near-Ring
Strict Category
Discrete Category
Semiring
Partial Applicative System
Free Monoid
Group Action
Boolean
Discrete Cartesian Fibration
Ring
Category of Sets
Semidirected Set
Augmented Displayed Group
Directed Set
Free Group
Directed Multigraph
Category of Pointed Sets
Topological Space
Torsor
Kleene Space
G-Set
Antisymmetric Relation