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3 The negatively Z-graded closure of a category
 3.1 Constructors
 3.2 GAP Categories

3 The negatively Z-graded closure of a category

3.1 Constructors

3.1-1 NegativelyZGradedClosureCategory
‣ NegativelyZGradedClosureCategory( C )( attribute )

Returns: a CAP category

Construct the negatively \(Z\)-graded closure of the category C.

3.2 GAP Categories

3.2-1 IsNegativelyZGradedClosureCategory
‣ IsNegativelyZGradedClosureCategory( object )( filter )

Returns: true or false

The GAP category of negatively Z-graded categories.

3.2-2 IsCellInNegativelyZGradedClosureCategory
‣ IsCellInNegativelyZGradedClosureCategory( object )( filter )

Returns: true or false

The GAP category of cells in a negatively Z-graded category.

3.2-3 IsObjectInNegativelyZGradedClosureCategory
‣ IsObjectInNegativelyZGradedClosureCategory( object )( filter )

Returns: true or false

The GAP category of objects in a negatively Z-graded category.

3.2-4 IsMorphismInNegativelyZGradedClosureCategory
‣ IsMorphismInNegativelyZGradedClosureCategory( morphism )( filter )

Returns: true or false

The GAP category of morphisms in a negatively Z-graded category.

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