Full Idea
Stuff obeys unrestricted composition and mereological essentialism, whereas things do not.
Gist of Idea
Unlike things, stuff obeys unrestricted composition and mereological essentialism
Source
Theodore Sider (Writing the Book of the World [2011], 09.6.2)
Book Reference
Sider,Theodore: 'Writing the Book of the World' [OUP 2011], p.184
A Reaction
[He cites Markosian 2004]
Related Ideas
Idea 9667 Mereological composition is unrestricted: any class of things has a mereological sum [Lewis]
Idea 8443 Mereological essentialism says an entity must have exactly those parts [Sosa]