https://repository.gatech.edu/entities/publication/b58bc964-6e53-4326-89c2-42a4da6f3cf1
Color, shape, and number identity-nonidentity responding and concept formation in orangutans
The ability to recognize sameness among objects and events is a prerequisite for abstraction and forming concepts about what one has learned; thus, identity...
color shapeconcept formationnumberidentity
https://plato.stanford.edu/archives/spr2024/entries/nonidentity-problem/
The Nonidentity Problem (Stanford Encyclopedia of Philosophy/Spring 2024 Edition)
encyclopedia of philosophyproblemstanfordspringedition