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r""" 

Sage categories quickref 

------------------------ 

 

- sage.categories.primer? A primer on Elements, Parents, and Categories 

- sage.categories.tutorial? A tutorial on Elements, Parents, and Categories 

- Category? Technical background on categories 

- Sets() Semigroups() Algebras(QQ) Some categories 

- SemiGroups().example()?? Sample implementation of a semigroup 

- Hom(A, B), End(A, Algebras()) Homomorphisms sets 

- tensor, cartesian_product Functorial constructions 

 

Module layout: 

 

- sage.categories.basic: the basic categories 

- sage.categories.all: all categories 

- sage.categories.semigroups: the Semigroups() category 

- sage.categories.examples.semigroups the example of Semigroups() 

- sage.categories.homset, map, 

morphism, functors: morphisms, ... 

- sage.categories.cartesian_product, tensor, 

dual: functorial constructions 

 

 

Todo: put the quickref in quickref.py, and only some pointers here? 

 

""" 

 

from . import primer