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18. Thought / D. Concepts / 4. Concepts and Language / c. Concepts without language

[possibility of concepts which do not involve language]

4 ideas
If someone has aphasia but can still play chess, they clearly have concepts [Geach]
Maybe there can be non-conscious concepts (e.g. in bees) [Dennett]
Prelinguistic infants acquire and use many categories [Gelman]
People can formulate new concepts which are only named later [Margolis/Laurence]