Mereology

This week we’ll explore progressively stronger mereologies, beginning with Minimal Mereology, moving to Extensional Mereology, and finally looking at Classical Extensional Mereology.  Put another way:  we’ll start with claims like “no things can be parts of one another” and “if you have just some of something, there must be some more of it”.  We’ll move on to more controversial claims, like “no distinct things can have exactly the same parts”.