$Id: daml+oil.daml,v 1.3 2003-07-24 15:27:55 ian_dickinson Exp $ Class The class of all "object" classes Datatype The class of all datatype classes Thing The most general (object) class in DAML. This is equal to the union of any class and its complement. Nothing the class with no things in it. equivalentTo for equivalentTo(X, Y), read X is an equivalent term to Y. sameClassAs for sameClassAs(X, Y), read X is an equivalent class to Y. cf OIL Equivalent samePropertyAs for samePropertyAs(P, R), read P is an equivalent property to R. sameIndividualAs for sameIndividualAs(a, b), read a is the same individual as b. disjointWith for disjointWith(X, Y) read: X and Y have no members in common. cf OIL Disjoint differentIndividualFrom for differentIndividualFrom(a, b), read a is not the same individual as b. unionOf for unionOf(X, Y) read: X is the union of the classes in the list Y; i.e. if something is in any of the classes in Y, it's in X, and vice versa. cf OIL OR disjointUnionOf for disjointUnionOf(X, Y) read: X is the disjoint union of the classes in the list Y: (a) for any c1 and c2 in Y, disjointWith(c1, c2), and (b) unionOf(X, Y). i.e. if something is in any of the classes in Y, it's in X, and vice versa. cf OIL disjoint-covered intersectionOf for intersectionOf(X, Y) read: X is the intersection of the classes in the list Y; i.e. if something is in all the classes in Y, then it's in X, and vice versa. cf OIL AND complementOf for complementOf(X, Y) read: X is the complement of Y; if something is in Y, then it's not in X, and vice versa. cf OIL NOT oneOf for oneOf(C, L) read everything in C is one of the things in L; This lets us define classes by enumerating the members. cf OIL OneOf Restriction something is in the class R if it satisfies the attached restrictions, and vice versa. onProperty for onProperty(R, P), read: R is a restricted with respect to property P. toClass for onProperty(R, P) and toClass(R, X), read: i is in class R if and only if for all j, P(i, j) implies type(j, X). cf OIL ValueType hasValue for onProperty(R, P) and hasValue(R, V), read: i is in class R if and only if P(i, V). cf OIL HasFiller hasClass for onProperty(R, P) and hasClass(R, X), read: i is in class R if and only if for some j, P(i, j) and type(j, X). cf OIL HasValue minCardinality for onProperty(R, P) and minCardinality(R, n), read: i is in class R if and only if there are at least n distinct j with P(i, j). cf OIL MinCardinality maxCardinality for onProperty(R, P) and maxCardinality(R, n), read: i is in class R if and only if there are at most n distinct j with P(i, j). cf OIL MaxCardinality cardinality for onProperty(R, P) and cardinality(R, n), read: i is in class R if and only if there are exactly n distinct j with P(i, j). cf OIL Cardinality hasClassQ property for specifying class restriction with cardinalityQ constraints minCardinality for onProperty(R, P), minCardinalityQ(R, n) and hasClassQ(R, X), read: i is in class R if and only if there are at least n distinct j with P(i, j) and type(j, X). cf OIL MinCardinality maxCardinality for onProperty(R, P), maxCardinalityQ(R, n) and hasClassQ(R, X), read: i is in class R if and only if there are at most n distinct j with P(i, j) and type(j, X). cf OIL MaxCardinality cardinality for onProperty(R, P), cardinalityQ(R, n) and hasClassQ(R, X), read: i is in class R if and only if there are exactly n distinct j with P(i, j) and type(j, X). cf OIL Cardinality ObjectProperty if P is an ObjectProperty, and P(x, y), then y is an object. DatatypeProperty if P is a DatatypeProperty, and P(x, y), then y is a data value. inverseOf for inverseOf(R, S) read: R is the inverse of S; i.e. if R(x, y) then S(y, x) and vice versa. cf OIL inverseRelationOf TransitiveProperty if P is a TransitiveProperty, then if P(x, y) and P(y, z) then P(x, z). cf OIL TransitiveProperty. UniqueProperty compare with maxCardinality=1; e.g. integer successor: if P is a UniqueProperty, then if P(x, y) and P(x, z) then y=z. cf OIL FunctionalProperty. UnambiguousProperty if P is an UnambiguousProperty, then if P(x, y) and P(z, y) then x=z. aka injective. e.g. if firstBorne(m, Susan) and firstBorne(n, Susan) then m and n are the same. the empty list; this used to be called Empty. for item(L, I) read: I is an item in L; either first(L, I) or item(R, I) where rest(L, R). Ontology An Ontology is a document that describes a vocabulary of terms for communication between (human and) automated agents. versionInfo generally, a string giving information about this version; e.g. RCS/CVS keywords imports for imports(X, Y) read: X imports Y; i.e. X asserts the* contents of Y by reference; i.e. if imports(X, Y) and you believe X and Y says something, then you should believe it. Note: "the contents" is, in the general case, an il-formed definite description. Different interactions with a resource may expose contents that vary with time, data format, preferred language, requestor credentials, etc. So for "the contents", read "any contents".