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