Combining Texts

Ideas for 'works', 'Introduction to Mathematical Logic' and 'Set Theory and Its Philosophy'

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4. Formal Logic / G. Formal Mereology / 1. Mereology

10707	Mereology elides the distinction between the cards in a pack and the suits [Potter]
	Full Idea: Mereology tends to elide the distinction between the cards in a pack and the suits.
	From: Michael Potter (Set Theory and Its Philosophy [2004], 02.1)
	A reaction: The example is a favourite of Frege's. Potter is giving a reason why mathematicians opted for set theory. I'm not clear, though, why a pack cannot have either 4 parts or 52 parts. Parts can 'fall under a concept' (such as 'legs'). I'm puzzled.