Rngs

class sage.categories.rngs.Rngs(s=None)

Bases: sage.categories.category.Category

The category of rngs associative rings, not necessarily commutative, and not necessarily with 1 This is a combination of an abelian group (+) and a semigroup (*), with * distributing over +

EXAMPLES:

sage: Rngs()
Category of rngs
sage: Rngs().super_categories()
[Category of commutative additive groups, Category of semigroups]

TESTS:

sage: TestSuite(Rngs()).run()

class ElementMethods

class Rngs.ParentMethods

Rngs.super_categories(*args, **kwds)

EXAMPLES:

sage: Rngs().super_categories()
[Category of commutative additive groups, Category of semigroups]