So if we are to summarize, How do we cetegorize?

Definition approach: Might work for concepts which have a explicit definition. (Right angled triangle) Prototype approach assume the existence of “prototypes” which features are most likely true for all members belonging to the same category. Exemplar theories assume that concepts are represented purely by exemplars. Knowledge-based theories: Emphasise that concepts can be formed based on deep knowledge. Essentialism: All instances of a given concept share some key properties which are critical for the definition.