@hackage/Fin
Finite totally-ordered sets
@hackage/affine
Affine spaces (generalized)
@hackage/ca
Cellular Automata
@hackage/category
Categorical types and classes
@hackage/constrained-category
Constrained Categories
@hackage/ival
Intervals
@hackage/permutations
Permutations of finite sets
@hackage/stern-brocot
Positive rational numbers represented as paths in the Stern-Brocot tree