And of course to throw things into the pot there is Philodemus' "On Signs" / "On Methods of Inference" which is also dealing directly on the Epicurean view of when it is and is not appropriate to draw inferences.
Philodemus: On methods of inference: a study in ancient empiricism : Philodemus : Free Download, Borrow, and Streaming : Internet Archive
http://uf.catalog.fcla.edu/uf.jsp?st=UF001032148&ix=nu&I=0&V=D
archive.org