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This page is part of the ongoing
Project Categorization
Aristotelian category
Categorization
Category
Category boundaries
Fuzziness
Vagueness
Levels of categorization
Basic level
Category-wide attribute
Collective function
Subordinate level
Superordinate level
Parasitic categorization
Prototype category
Bad member
Degree of membership
Extension
Flexible adaptability
Goodness of exemplar
Good member
Informational density
Inheritance
Radial structure
Structural stability
Taxonomy
Class inclusion
Degree of generality
Expert taxonomy
Folk taxonomy
Multiple parenting
Scientific taxonomy


An extension of a category is an instance, or a subset of instances, that cannot be predicted as a member of the category, but whose category membership has to be learned by convention.

BibliographyEdit

  • Lakoff, George (1987). Women, Fire, and Dangerous Things: What Categories Reveal about the Mind. Chicago: Chicago University Press.
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