Relationsumo#range_subclass(pm#function_type,sumo#set_or_class)all of the values assigned by the function in the 1st argument are subclasses of the 2nd argmenttype: pm#binary_predicate_typethe class of predicates relating two items - its valence is twotype: pm#asymmetric_relation_typean antisymmetric and irreflexive relationsupertype: pm#relation_from_relation_type (pm#relation_type,*) supertype: pm#relation_from_type (pm#type,*)type of relations from a concept/relation type, i.e. in RDFS terminology, from a class or a propertysupertype: pm#relation_from_collection (pm#collection,*) supertype: pm#relation_from/to_thing_of_common_kind (*)this type permits to categorize relations according to their signatures and hence offers (i) a concise way to set essential exclusion relations, and (ii) a systematic and easy-to-follow categorizationsupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#what_relation (*) supertype: pm#wh-/how_relation (*)this type permits to categorize relations according to the usual who/what/why/where/when/how questions ; this is a traditional but very subjective and ineffective way of categorizing relationssupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#asymmetric_relation (?,?)this category only serves structuration purposes: it is instance of pm#asymmetric_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#irreflexive_relation__irreflexiverelation (?,?)this category only serves structuration purposes: it is instance of pm#irreflexive_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#binary_relation_with_particular_mathematical_property (?,?) supertype: pm#relation_with_particular_mathematical_property (*) supertype: pm#relation_with_particular_property (*)this rather fuzzy type permits to group categorization schemes less common than those covered by the previous sibling categoriessupertype: pm#relation__related_thing__relatedthing___related_with (*)type for any relation (unary, binary, ..., *-ary) and instance of pm#relation_typesupertype: pm#antisymmetric_relation__antisymmetricrelation (?,?)this category only serves structuration purposes: it is instance of pm#antisymmetric_relation_type which is not instance of pm#class_of_inheritable_relation_typesupertype: pm#binary_relation_with_particular_mathematical_property (?,?)