Does universalism entail extensionalism?

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Does a commitment to mereological universalism automatically bring along a commitment to the controversial doctrine of mereological extensionalism—the view that objects with the same proper parts are identical? A recent argument suggests the answer is ‘yes’. This paper attempts a systematic response to the argument, considering nearly every available line of reply. It argues that only one approach—the mutual parts view—can yield a viable mereology where universalism does not entail extensionalism.
Original languageEnglish
Pages (from-to)121-132
Number of pages12
Issue number1
Early online date19 Mar 2014
Publication statusPublished - Mar 2016


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