]> 2008/06/10 OpenCyc Knowledge Base Copyright© 2001-2008 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA This file contains an OWL representation of information contained in the OpenCyc Knowledge Base. The content of this OWL file is licensed under the Creative Commons Attribution 3.0 license whose text can be found at http://creativecommons.org/licenses/by/3.0/legalcode. The content of this OWL file, including the OpenCyc content it represents, constitutes the "Work" referred to in the Creative Commons license. The terms of this license equally apply to, without limitation, renamings and other logically equivalent reformulations of the content of this OWL file (or portions thereof) in any natural or formal language, as well as to derivations of this content or inclusion of it in other ontologies. externalID A unique, language-neutral, variable-sized identifier for a concept that can be used to refer unambiguously to that concept across OWL exports or across Cyc inference engines. label A natural-language representation for a concept that is both human readable and readable by the Cyc inference engine. These terms are not guaranteed to refer to the same concept across time but are guaranteed to be consistent within a particular OWL export. Use 'cycAnnot:externalID' for unambiguously referring to a concept across OWL exports or across Cyc inference engines. group of baseball teams (GroupFn BaseballTeam) The collection of all negro leagues. A type of baseball organization, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgyS-5wpEbGdrcN5Y29ycA" class="cyc_term">ProfessionalSportsLeague</a>, and group of baseball teams. NegroLeague-Baseball negro league (GroupFn (CollectionIntersection2Fn ProfessionalSportsTeam (CollectionIntersection2Fn BaseballTeam MensSportsTeam))) group of Collection Intersection 2 Fn professional sports team baseball team that is also a mens sports team baseball leagues whose players are college students from different colleges. The purpose of such leagues is to give promising players professional-like experience while upholding their amateur status. college developmental baseball league CollegeDevelopmentalBaseballLeague AmericanLeagueEast-Baseball American League East NationalLeagueCentral-Baseball National League Central AmericanLeague-Baseball the American League American League Central AmericanLeagueCentral-Baseball American League West AmericanLeagueWest-Baseball National League West NationalLeagueWest-Baseball National League East NationalLeagueEast-Baseball National League NationalLeague-Baseball group of baseball teams (GroupFn BaseballTeam) ObjectType The collection of all collections that are "object-like" in at least one respect. A collection <code>COL</code> is object-like just in case there is some sense of 'part' according to which any (or nearly any) given proper part of an instance of <code>COL</code> is not itself an instance of <code>COL</code>; when this happens <code>COL</code> is said to be object-like with respect to that sense of 'part'. More precisely, for a collection <code>COL</code> to be an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA" class="cyc_term">ObjectType</a> it is sufficient that there be some specialization <code>PARTPRED</code> of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwgfukKs8QdePzLB9nLNpTw" class="cyc_term">properParts</a> such that, for any <code>OBJ1</code> and <code>OBJ2</code>, if <code>(<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> OBJ1 COL)</code> and <code>(PARTPRED OBJ1 OBJ2)</code> both hold, then <code>(<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> OBJ2 COL)</code> does not hold. (Also sufficient for <code>COL</code>'s being an object-type is that there be some specialization <code>INVPARTPRED</code> of the inverse of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwgfukKs8QdePzLB9nLNpTw" class="cyc_term">properParts</a> (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWHsNJwpEbGdrcN5Y29ycA" class="cyc_term">genlInverse</a>) such that <code>(INVPARTPRED OBJ2 OBJ1)</code>, with everything else remaining the same as above.) Note that neither of the above sufficient conditions for <code>COL</code>'s being an object-type is strictly necessary: some exceptions are allowed. Thus as long as either one of the above conditionals holds in nearly all cases, <code>COL</code> should be considered an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA" class="cyc_term">ObjectType</a>. Here are two examples. Consider <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViVwZwpEbGdrcN5Y29ycA" class="cyc_term">Automobile</a>. Take an instance of that, say my car. Now consider one of the proper <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj5FpwpEbGdrcN5Y29ycA" class="cyc_term">physicalParts</a> of my car, say the steering wheel. The steering wheel is not an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViVwZwpEbGdrcN5Y29ycA" class="cyc_term">Automobile</a>. And the same would be true for any proper physical part of any car. So <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViVwZwpEbGdrcN5Y29ycA" class="cyc_term">Automobile</a> is an <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA" class="cyc_term">ObjectType</a>. Consider <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyV5wpEbGdrcN5Y29ycA" class="cyc_term">CalendarYear</a>. No proper <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWn4OZwpEbGdrcN5Y29ycA" class="cyc_term">timeSlices</a> of a year is itself a year. So <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjyV5wpEbGdrcN5Y29ycA" class="cyc_term">CalendarYear</a> is an <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirnZwpEbGdrcN5Y29ycA" class="cyc_term">ObjectType</a>. See <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVir35wpEbGdrcN5Y29ycA" class="cyc_term">StuffType</a> for the contrasting (though not disjoint) notion of being stuff-like. type of object group of sports teams (GroupFn SportsTeam) group of baseball teams (GroupFn BaseballTeam)