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inherit-path

inherit-path[parent-type] input-seq
return the inherit path for the kets in input-seq

-- learn some inheritance paths:
parent-type |trudy> => |cat>
parent-type |cat> => |feline>
parent-type |feline> => |mammal>
parent-type |mammal> => |animal>

parent-type |rex> => |dog>
parent-type |dog> => |canine>
parent-type |canine> => |mammal>

-- now find the inheritance path for trudy and rex:
inherit-path[parent-type] (|trudy> + |rex>)
    |animal: mammal: feline: cat: trudy> + |animal: mammal: canine: dog: rex>

inherit, extract-value, extract-category

sequence compound context