Ideas from 'Platonistic Theories of Universals' by J Hoffman/G Rosenkrantz [2003], by Theme Structure

[found in 'The Oxford Handbook of Metaphysics' (ed/tr Loux,M /Zimmerman,D) [OUP 2005,0-19-928422-9]].

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2. Reason / B. Laws of Thought / 6. Ockham's Razor
Entities can be multiplied either by excessive categories, or excessive entities within a category
8. Modes of Existence / D. Universals / 4. Uninstantiated Universals
'There are shapes which are never exemplified' is the toughest example for nominalists
8. Modes of Existence / E. Nominalism / 1. Nominalism / a. Nominalism
Nominalists are motivated by Ockham's Razor and a distrust of unobservables
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
Four theories of possible worlds: conceptualist, combinatorial, abstract, or concrete