Ontology is one of the best known and most important branches of metaphysics - the study of "things", of "beings", or of "what there is" (in oppose to what "there isn't").
I have a few questions about the opposite of ontology:
(0. Is there any meaning to ask questions outside of the ontological scope?)
- First and foremost, is there a branch of metaphysics that focuses on the "opposite" of ontology, or more precisely, the "things" that don't exist in our ontological world? (but rather maybe "exist" [though it can't be stated to be "exist" when the term is used inside the ontological branch itself] in other worlds)
If yes then:
Is there any research (active or not) in such branch?
What are the influences (past or possible ones) of such branch to the ontological branch?
[Those questions can be easily answered by "no" to the first question, but I think I've read something about such branch, I don't recall where so I don't even know where to look (so don't ask me, I've searched Google but couldn't find anything). It might not be an "official" branch maybe? I don't know.]