Ideas from 'Commentary on 'Posterior Analytics' by Jonathan Barnes [1993], by Theme Structure

[found in 'Posterior Analytics (2nd ed)' by Aristotle (ed/tr Barnes,Jonathan) [OUP 1993,0-19-824089-9]].

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18. Thought / E. Abstraction / 8. Abstractionism Critique
Defining concepts by abstractions will collect together far too many attributes from entities
Abstraction from an ambiguous concept like 'mole' will define them as the same
Abstraction cannot produce the concept of a 'game', as there is no one common feature