Bases: sage.categories.category_types.Category_over_base_ring
The category of left modules left modules over an rng (ring not necessarily with unit), i.e. an abelian group with left multiplation by elements of the rng
EXAMPLES:
sage: LeftModules(ZZ)
Category of left modules over Integer Ring
sage: LeftModules(ZZ).super_categories()
[Category of commutative additive groups]
TESTS:
sage: TestSuite(LeftModules(ZZ)).run()
EXAMPLES:
sage: LeftModules(QQ).super_categories()
[Category of commutative additive groups]