Combining Texts

Ideas for 'Natural Kinds', 'Commentary on the Sentences' and 'The Logic of Decision'

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9. Objects / D. Essence of Objects / 12. Essential Parts

16792	If parts change, the whole changes [William of Ockham]
	Full Idea: That is not the same whole that does not have the same parts.
	From: William of Ockham (Commentary on the Sentences [1320], IV.13), quoted by Robert Pasnau - Metaphysical Themes 1274-1671 29.2
	A reaction: In isolation, this is mereological essentialism (as Pasnau confirms), which is incredibly implausible, if I cease to be the same person when I cut one of my fingernails.