]> 2009/04/07 OpenCyc Knowledge Base Copyright© 2001-2009 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. Mappings between OpenCyc terms and Wikipedia article names provided by Olena Medelyan and Catherine Legg, University of Waikato, NZ under a Creative Commons Attribution 3.0 license. 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. Neurology is the study of the nervous system. Neurology neurology neuroscience

Neurology

http://en.wikipedia.org/wiki/Neurology Neurology is the study of the nervous system. Neurology neurology A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvVi3N5wpEbGdrcN5Y29ycA" class="cyc_term">FieldOfStudy</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rvVi3_JwpEbGdrcN5Y29ycA" class="cyc_term">ScientificFieldOfStudy</a> is a specialized body of knowledge, theory, hypotheses, observations, and problems, which together constitute the informational content of a systematic endeavor to explain (some part of) the natural world by rational (and frequently, quantifiable) methods, including, but not limited to, induction, falsifiable hypotheses tested by repeatable physical experiments, and deductive proof. Instances of <a href="http://sw.opencyc.org/concept/Mx4rvVi3_JwpEbGdrcN5Y29ycA" class="cyc_term">ScientificFieldOfStudy</a> include the traditional hard sciences (e.g., <a href="http://sw.opencyc.org/concept/Mx4rvViOapwpEbGdrcN5Y29ycA" class="cyc_term">Physics</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVixcJwpEbGdrcN5Y29ycA" class="cyc_term">Chemistry</a>), the life sciences (e.g., <a href="http://sw.opencyc.org/concept/Mx4rvVili5wpEbGdrcN5Y29ycA" class="cyc_term">Biology</a>, <a href="http://sw.opencyc.org/concept/Mx4rvViFU5wpEbGdrcN5Y29ycA" class="cyc_term">Genetics</a>, <a href="http://sw.opencyc.org/concept/Mx4rvVi1ipwpEbGdrcN5Y29ycA" class="cyc_term">Toxicology</a>), and <a href="http://sw.opencyc.org/concept/Mx4rvVjHd5wpEbGdrcN5Y29ycA" class="cyc_term">Mathematics</a>. ScientificFieldOfStudy scientific discipline Pretty String (<a href="http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> TERM STRING) means that STRING is the English word or expression (sequence of words) commonly used to refer to TERM. The predicate <a href="http://sw.opencyc.org/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> is used by the code which generates CycL to English paraphrases, but its applicability is not restricted to this use. prettyString Neurology is the study of the nervous system. Neurology neurology Medical science: a <a href="http://sw.opencyc.org/concept/Mx4rvVi3N5wpEbGdrcN5Y29ycA" class="cyc_term">FieldOfStudy</a>. Medicine-FieldOfStudy medical science Neurology is the study of the nervous system. Neurology neurology science Science Science: a <a href="http://sw.opencyc.org/concept/Mx4rvVi3_JwpEbGdrcN5Y29ycA" class="cyc_term">ScientificFieldOfStudy</a>. Wikipedia Article URL (<a href="http://sw.opencyc.org/concept/Mx4rNv0nbm4TTjOp7yhmnzOyqg" class="cyc_term">wikipediaArticleURL</a> THING URL) means that in <a href="http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article located at URL wikipediaArticleURL A specialization of <a href="http://sw.opencyc.org/concept/Mx4rvViAyZwpEbGdrcN5Y29ycA" class="cyc_term">equals</a> and a <a href="http://sw.opencyc.org/concept/Mx4rvWKHbpwpEbGdrcN5Y29ycA" class="cyc_term">CycLReformulatorConstant</a> that relates pairs of <a href="http://sw.opencyc.org/concept/Mx4rwE2kWpwpEbGdrcN5Y29ycA" class="cyc_term">CycLClosedDenotationalTerm</a>s. <a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> is, in a sense, a "directional" version of <a href="http://sw.opencyc.org/concept/Mx4rvViAyZwpEbGdrcN5Y29ycA" class="cyc_term">equals</a>. <code>(<a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> FAVORED-TERM DISFAVORED-TERM)</code> means that (1) <code>FAVORED-TERM</code> and <code>DISFAVORED-TERM</code> denote the same thing, and (2) <code>FAVORED-TERM</code> is deemed worthy of being privileged over <code>DISFAVORED-TERM</code> in the following senses: assertions made on <code>DISFAVORED-TERM</code> will be propagated to <code>FAVORED-TERM</code>, and whenever possible attempts to reason about <code>DISFAVORED-TERM</code> will be transformed into attempts to reason about <code>FAVORED-TERM</code>. The propagated assertions will differ from the original assertions only in that the propagated assertions will be the result of substituting <code>FAVORED-TERM</code> for <code>DISFAVORED-TERM</code> wherever <code>DISFAVORED-TERM</code> occurs in the original assertions. Note that substitution does not happen in the opposite direction. That is, assertions containing <code>FAVORED-TERM</code> will not propagate to <code>DISFAVORED-TERM</code>. One common use of <a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> is that in which <code>FAVORED-TERM</code> is a syntactically simpler term than <code>DISFAVORED-TERM</code>. For example, <code>FAVORED-TERM</code> may contain fewer nested terms that denote <a href="http://sw.opencyc.org/concept/Mx4rvVxAsJwpEbGdrcN5Y29ycA" class="cyc_term">Function_Denotational</a>s than does <code>DISFAVORED-TERM</code>. (<a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> <a href="http://sw.opencyc.org/concept/Mx4rvVjxdJwpEbGdrcN5Y29ycA" class="cyc_term">UnitedStatesNavy</a> (<a href="http://sw.opencyc.org/concept/Mx4rwGGrfpwpEbGdrcN5Y29ycA" class="cyc_term">NavyFn</a> <a href="http://sw.opencyc.org/concept/Mx4rvVikKpwpEbGdrcN5Y29ycA" class="cyc_term">UnitedStatesOfAmerica</a>)) is a good example of this common sort of use. Note that <a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> expresses a strictly conventional notion of "directional" equality. Pragmatic considerations, not ontology, will dictate which term is chosen to occur as the privileged (left-hand side) term in a <a href="http://sw.opencyc.org/concept/Mx4rwTvAxJwpEbGdrcN5Y29ycA" class="cyc_term">rewriteOf</a> assertion. Thus, in the example the fact that simpler terms are generally easier to use (remember, manipulate, etc.) dictates that <a href="http://sw.opencyc.org/concept/Mx4rvVjxdJwpEbGdrcN5Y29ycA" class="cyc_term">UnitedStatesNavy</a> should be a rewrite of (<a href="http://sw.opencyc.org/concept/Mx4rwGGrfpwpEbGdrcN5Y29ycA" class="cyc_term">NavyFn</a> <a href="http://sw.opencyc.org/concept/Mx4rvVikKpwpEbGdrcN5Y29ycA" class="cyc_term">UnitedStatesOfAmerica</a>), and not vice versa. Rewrite Of rewriteOf BT broaderTerm <code>(<a href="http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw" class="cyc_term">broaderTerm</a> TERM1 TERM2)</code> means that <code>TERM2</code> is broader than <code>TERM1</code>, in an extremely general sense of "broader". For example, <code>TERM2</code> is, in the relevant sense, broader than <code>TERM1</code> if any of the following hold: <code>TERM2</code> is a collection that subsumes <code>TERM1</code>; <code>TERM2</code> is a collection that has <code>TERM1</code> as an instance; <code>TERM2</code> is a collection, instances of which have instances of the collection <code>TERM1</code> as parts; <code>TERM2</code> has <code>TERM1</code> as a part; This list of reasons for why <code>(<a href="http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw" class="cyc_term">broaderTerm</a> TERM1 TERM2)</code> could hold is not exhaustive, but it should give a good indication of how general the <a href="http://sw.opencyc.org/concept/Mx4rZOAVeiYGEdqAAAACs2IMmw" class="cyc_term">broaderTerm</a> relation actually is. biology The field of study which concerns living things and systems of living things (other than human society), viewed as physical objects of scientific study. Biology neurology (FocalFieldOfStudyFn Neurologist) wikipediaArticleName (<a href="http://sw.opencyc.org/concept/Mx4rTv-jk9SPTXa991kk5mAvHg" class="cyc_term">wikipediaArticleName</a> THING NAME) means that in <a href="http://sw.opencyc.org/concept/Mx4rtqXA6OC8QdiWC72DuLJdUw" class="cyc_term">Wikipedia_WebSite</a> THING is described by an article with the title NAME Wikipedia Article Name