EFO | Instances | AgroPortal

ID	http://purl.obolibrary.org/obo/IAO_0000410 http://purl.obolibrary.org/obo/IAO_0000410 https://agroportal.lirmm.fr/ontologies/EFO/IAO_0000410 Loading
Label	universal
IAO_0000117	Alan Ruttenberg
IAO_0000111	universal
IAO_0000116	Hard to give a definition for. Intuitively a "natural kind" rather than a collection of any old things, which a class is able to be, formally. At the meta level, universals are defined as positives, are disjoint with their siblings, have single asserted parents.
IAO_0000119	A Formal Theory of Substances, Qualities, and Universals, http://ontology.buffalo.edu/bfo/SQU.pdf