{"id":1781,"date":"2012-12-01T14:36:54","date_gmt":"2012-12-01T14:36:54","guid":{"rendered":"http:\/\/www.illc.uva.nl\/lgc\/seminar\/?p=1781"},"modified":"2013-01-11T13:54:15","modified_gmt":"2013-01-11T13:54:15","slug":"lira-session-kohei-kishida","status":"publish","type":"post","link":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/2012\/12\/lira-session-kohei-kishida\/","title":{"rendered":"LIRa session: Kohei Kishida"},"content":{"rendered":"<p>On January 10, we will have a we will have a LIRa session with Kohei Kishida.<\/p>\n<div>\n<p>Everyone is cordially invited!<\/p>\n<p>Speaker:\u00a0<strong>Kohei Kishida <\/strong>(ILLC, UvA)<br \/>\nTitle:\u00a0<strong>Public Announcements under Sheaves<\/strong><br \/>\nDate and Time: Thursday, January 10, 2013,\u00a0<strong>15:30-17:30<\/strong><br \/>\nVenue: Science Park 904, Room\u00a0<strong>A1.04<\/strong><br \/>\nAbstract:<br \/>\nThis paper brings together the frameworks of model-update semantics for\u00a0(propositional) public-announcement logic and of sheaf semantics for first-order modal logic, and to thereby obtain a sheaf semantics for first-order\u00a0public announcement logic. \u00a0The first attempt to extend dynamic epistemic\u00a0logic to the first order was briefly made in [2], with constant domains for\u00a0interpreting first-order vocabulary. \u00a0The goal of this paper is to push\u00a0ahead with this extension by employing neighborhood structures and sheaf\u00a0structures, providing a progress toward a more flexible and useful treatment\u00a0of knowledge operators and first-order notions.<\/p>\n<p>In particular, we lay out three elements of extension for the standard PAL:<br \/>\n(i) the (monotone) neighborhood setting (an extension first given in [1]);<br \/>\n(ii) the first-order version FOPAL [2]; and (iii) its neighborhood-sheaf\u00a0semantics. \u00a0(i) facilitates an &#8220;observability and verifiability&#8221;\u00a0interpretation of knowledge operators that is not available to Kripke\u00a0semantics. \u00a0(ii) brings into the PAL analysis of dynamic and epistemic\u00a0processes a first-order vocabulary, and in particular names for individuals.\u00a0And, lastly, (iii) gives us a flexible way of modelling how a first-order\u00a0ontology as well as first-order vocabulary can evolve in dynamic and\u00a0epistemic processes. \u00a0This work lays the foundation for modal-logical\u00a0analyses of such evolution.<\/p>\n<p>References:<br \/>\n[1] Demey, L., &#8220;Towards a Dynamics of Realistic Knowledge: Neighborhood<br \/>\nSemantics for Public Announcement Logic&#8221;, paper read at _Fourth Conference<br \/>\nof the Dutch-Flemish Association for Analytic Philosophy_, Leuven, Belgium,<br \/>\non Jan. 21, 2010.<br \/>\n[2] Ma, M., &#8220;Mathematics of Public Announcements&#8221;, in H. van Ditmarsch, J.<br \/>\nLang, and S. Ju, eds., _Logic, Rationality and Interaction: Third<br \/>\nInternational Workshop, LORI 2011_, Springer, 2011, pp. 193&#8211;205.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>On January 10, we will have a we will have a LIRa session with Kohei Kishida.<\/p>\n<p>Everyone is cordially invited!<br \/>\nSpeaker:\u00a0Kohei Kishida (ILLC, UvA)<br \/>\nTitle:\u00a0Public Announcements under Sheaves<br \/>\nDate and Time: Thursday, January 10, 2013,\u00a015:30-17:30<br \/>\nVenue: Science Park 904, Room\u00a0A1.04<br \/>\nAbstract:<br \/>\nThis paper brings together the frameworks of model-update semantics for\u00a0(propositional) public-announcement logic and of sheaf semantics for first-order modal logic, and [&#8230;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1781","post","type-post","status-publish","format-standard","hentry","category-events"],"_links":{"self":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/1781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/comments?post=1781"}],"version-history":[{"count":10,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/1781\/revisions"}],"predecessor-version":[{"id":1784,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/posts\/1781\/revisions\/1784"}],"wp:attachment":[{"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/media?parent=1781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/categories?post=1781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/projects.illc.uva.nl\/lgc\/seminar\/wp-json\/wp\/v2\/tags?post=1781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}