Not different kinds, just special cases.
Machery's Heterogeneity Hypothesis depends on his argument that no theory of concepts can account for all the extant reliable categorization data. I argue that a single theoretical framework based on graphical models can explain all of the behavioral data to which this argument refers. These different theories of concepts thus (arguably) correspond to different special cases, not different kinds.
Danks
David
D
Carnegie Mellon University and Institute for Human & Machine Cognition, Department of Philosophy, Pittsburgh, PA 15213, USA. ddanks@cmu.edu
D003210:Concept Formation; D006801:Humans; D019359:Knowledge; D008960:Models, Psychological; D011582:Psychological Theory