decoursin

(defn recursive-rule
  "A recursive rule for establishing prototype inheritance/isa relationship.  
  Can specify a maximum depth to travel, or none if there are no restrictinos.
  rule The name of the rule
  e The entity
  a The attribute
  v The value
  Should be creating the rule like: (recursive-rule 'isa '?e '?a '?v)
  Then within a query, can refer to it like this:
  (isa ?e :thing/isa ?v) "