The category of graded coalgebras

EXAMPLES:

sage: C = GradedCoalgebras(QQ); C
Join of Category of graded modules over Rational Field
and Category of coalgebras over Rational Field
sage: C is Coalgebras(QQ).Graded()
True


TESTS:

sage: TestSuite(C).run()


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Graded bialgebras with basis

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Graded coalgebras with basis