^ http://purl.obolibrary.org/obo/IAO_0000420

defined class

Instance information

definition

A defined class is a class that is defined by a set of logically necessary and sufficient conditions but is not a universal

editor note

"definitions", in some readings, always are given by necessary and sufficient conditions. So one must be careful (and this is difficult sometimes) to distinguish between defined classes and universal.

editor preferred term

defined class

term editor

Alan Ruttenberg

Instance relations