deferred class PART_COMPARABLE General cluster: base description: "Objects that may be compared according to a partial order relation" Ancestors ANY Queries infix "<" (other: [like Current] PART_COMPARABLE): BOOLEAN infix "<=" (other: [like Current] PART_COMPARABLE): BOOLEAN infix ">" (other: [like Current] PART_COMPARABLE): BOOLEAN infix ">=" (other: [like Current] PART_COMPARABLE): BOOLEAN