Is mereological nihilism, the metaphysical doctrine that objects with proper parts do not exist, the same as atomism? If not, what are the differences?
How can mereological nihilism work without assuming that there are at some point only objects which do not contain parts, i.e. philosophical atoms (things that are not composed, which means undividable)? If philosophical atoms do not exist, it would follow from mereological nihilism that nothing does exist, because everything has proper parts.