parthood

All of these cases illustrate the notion of parthood that forms the focus of mereology.

Wild Dreams Of Reality, 3 2009

Others, such as Morreau (2002: 338), argue instead that the link between vague parthood and vague composition is unwarranted: perhaps the de re indeterminacy of (59) is inherited by some instances of

Wild Dreams Of Reality, 3 2009

On the other hand, one may wonder about the possibility of unordinary cases of symmetric parthood relationships.

Wild Dreams Of Reality, 3 2009

Vice versa, one could frame a mereological theory by taking proper parthood as a primitive instead.

Wild Dreams Of Reality, 3 2009

We conclude by briefly considering a question that is not directly related to specific mereological principles but, rather, to the underlying notion of parthood that mereology seeks to systematize.

Wild Dreams Of Reality, 3 2009

This is, for example, van Inwagen's (1990) view of the matter, which results in a fuzzification of parthood that parallels in many ways to the fuzzification of membership in Zadeh's (1965) set theory, and it is this sort of intuition that also led to the development of such formal theories as Polkowsky and Skowron's (1994) “rough mereology” or Smith's (2005) theory of

Wild Dreams Of Reality, 3 2009

Still others take cases like this to motivate revisionary views about the nature of persistence, parthood, modality, identity, or existence.

Material Constitution Wasserman, Ryan 2009

Ï (y, x) = 1, then x = y and one could argue that the very same conditions may be taken to fix the basic properties of parthood regardless of whether Ï is bivalent.

Wild Dreams Of Reality, 3 2009

Second, the extensionality principle is formulated in terms of a two-place parthood relation.

Material Constitution Wasserman, Ryan 2009

Clearly, the properties of such restricted relations may not coincide with those of parthood broadly understood, so the principles of mereology should not be expected to carry over automatically.

Wild Dreams Of Reality, 3 2009