UML14 — Common operations should be added to collection types in OCL

Summary: A number of common operations should be added to the collection
types in OCL. These are:

Collection(T) :
any( <boolean-expression> ) : T
returns any element which satisfies <boolean-expression>
one( <boolean-expression> ) : Boolean
returns true if thee is exactly one element that satisfies
<boolean-expression>
theOne( <boolean-expression> ) : T
returns the single element which satisfies <boolean-expression>

and maybe others as well.