Other Definitions
category (dict)

Category

• it is used informally to mean a class of things, as in "the category of all living things". See categorization.
• in philosophy:
• notably, Aristotle classified all things into 10 categories
• others have made similar classifications, see categories of being
• Kant uses the word for the preconceived notions we use to organize sense data
• in information technology, a category is a container for the names of things.
• in mathematics:
• a category is a collection of mathematical objects of the same kind, together with the structure-preserving processes between them; as in "the category of all topological spaces and continuous maps". These are studied in category theory.
• in topology, one distinguishes between sets of first and second category; see Baire space.
• The game, Categories
• on Wikipedia: see for more about WP categories.

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