]> 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. AlfredTarski Alfred Tarski is, with <a href="http://sw.opencyc.org/concept/Mx4rvarT5ZwpEbGdrcN5Y29ycA" class="cyc_term">KurtGodel</a>, one of the founders of contemporary logic. His papers on the theory of truth and logical consequence, as well as his studies on axiomatic geometry, are commonly identified as the starting point of formal semantics and model theory. Born Alfred Teitelbaum in Russian-occupied Poland, he converted to Catholicism and changed his name to Tarski, apparently in an outburst of Polish nationalism following the Russian retreat in #$WorldWarI. Whatever the motive, the conversion did little to mollify the numerous anti-semites in Polish academia: Tarski wrote his seminal papers while teaching mathematics in high school. He later moved to the United States and had a distinguished career at the University of California, where his students included Solomon Feferman and Richard Montague. Alfred Tarski Tarski

Alfred Tarski

http://en.wikipedia.org/wiki/Alfred_Tarski The collection of all people whose work involves the study and development of formal logic. Note that most logicians consider themselves either philosophers or mathematicians. Logician logician 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 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 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 AlfredTarski Alfred Tarski is, with <a href="http://sw.opencyc.org/concept/Mx4rvarT5ZwpEbGdrcN5Y29ycA" class="cyc_term">KurtGodel</a>, one of the founders of contemporary logic. His papers on the theory of truth and logical consequence, as well as his studies on axiomatic geometry, are commonly identified as the starting point of formal semantics and model theory. Born Alfred Teitelbaum in Russian-occupied Poland, he converted to Catholicism and changed his name to Tarski, apparently in an outburst of Polish nationalism following the Russian retreat in #$WorldWarI. Whatever the motive, the conversion did little to mollify the numerous anti-semites in Polish academia: Tarski wrote his seminal papers while teaching mathematics in high school. He later moved to the United States and had a distinguished career at the University of California, where his students included Solomon Feferman and Richard Montague. Alfred Tarski PolishPerson Polish person The collection of people who are <a href="http://sw.opencyc.org/concept/Mx4rvViACJwpEbGdrcN5Y29ycA" class="cyc_term">citizens</a> of <a href="http://sw.opencyc.org/concept/Mx4rvVjKypwpEbGdrcN5Y29ycA" class="cyc_term">Poland</a>, or participate in its <a href="http://sw.opencyc.org/concept/Mx4r4VbZRgIxQdeJv7K4QRyNQg" class="cyc_term">NationalCulture</a>. <a href="http://sw.opencyc.org/concept/Mx4rwJ45PHS7EdaAAACgyZzFrg" class="cyc_term">Deceased</a> is a specialization of <a href="http://sw.opencyc.org/concept/Mx4ra50_OGkMEdaAAACQJ5T1Bg" class="cyc_term">AgentNowTerminated</a>. Each instance of <a href="http://sw.opencyc.org/concept/Mx4rwJ45PHS7EdaAAACgyZzFrg" class="cyc_term">Deceased</a> is a dead, formerly living organism. If the sentence, "(<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> ORG <a href="http://sw.opencyc.org/concept/Mx4rwJ45PHS7EdaAAACgyZzFrg" class="cyc_term">Deceased</a>)" is true, it means that ORG was once an organism (see <a href="http://sw.opencyc.org/concept/Mx4rvVjE1pwpEbGdrcN5Y29ycA" class="cyc_term">Organism_Whole</a>) which was alive and that ORG underwent death (see <a href="http://sw.opencyc.org/concept/Mx4rvVkJU5wpEbGdrcN5Y29ycA" class="cyc_term">Dying</a>) at some time prior to the time at which "(<a href="http://sw.opencyc.org/concept/Mx4rvViBBJwpEbGdrcN5Y29ycA" class="cyc_term">isa</a> ORG <a href="http://sw.opencyc.org/concept/Mx4rwJ45PHS7EdaAAACgyZzFrg" class="cyc_term">Deceased</a>)" is true. Deceased dead organism MaleHuman male person The collection of all male instances of <a href="http://sw.opencyc.org/concept/Mx4rIcwFloGUQdeMlsOWYLFB2w" class="cyc_term">HomoSapiens</a>. AlfredTarski Alfred Tarski is, with <a href="http://sw.opencyc.org/concept/Mx4rvarT5ZwpEbGdrcN5Y29ycA" class="cyc_term">KurtGodel</a>, one of the founders of contemporary logic. His papers on the theory of truth and logical consequence, as well as his studies on axiomatic geometry, are commonly identified as the starting point of formal semantics and model theory. Born Alfred Teitelbaum in Russian-occupied Poland, he converted to Catholicism and changed his name to Tarski, apparently in an outburst of Polish nationalism following the Russian retreat in #$WorldWarI. Whatever the motive, the conversion did little to mollify the numerous anti-semites in Polish academia: Tarski wrote his seminal papers while teaching mathematics in high school. He later moved to the United States and had a distinguished career at the University of California, where his students included Solomon Feferman and Richard Montague. Alfred Tarski Scientist engaged in the study, development and understanding of Mathematics and its applications Mathematician mathematician