Relation
type Abstract Class
Description (def-class RELATION (set) "The class of defined relations. We assume fixed arity" :lisp-fun #'(lambda (x env) (let ((y (unbound-variable? x env))) (if y (mapcar #'(lambda (rel) (cons (cons y rel) env)) (all-relations)) (if (get-relation (instantiate x env)) ;;;make sure to instantiate x (list env) :fail)))))
Subclass-of(system)
Source Provider(real world) AKT Support Ontology v1.0
Authority (real world)
Example
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Derived From IDEF0(function,input,output,control,mech)
IDEF0 Label
IDEF3 Label