{"id":2081,"date":"2025-10-06T17:31:55","date_gmt":"2025-10-06T16:31:55","guid":{"rendered":"https:\/\/cful.letras.ulisboa.pt\/lancog\/?p=2081"},"modified":"2025-10-06T17:31:55","modified_gmt":"2025-10-06T16:31:55","slug":"seminar-series-in-analytic-philosophy-2025-26-session-3","status":"publish","type":"post","link":"https:\/\/cful.demiurgos.eu\/lancog\/seminar-series-in-analytic-philosophy-2025-26-session-3\/","title":{"rendered":"Seminar Series in Analytic Philosophy 2025-26: Session 3"},"content":{"rendered":"<p style=\"font-weight: 400;\"><strong>Upper Logicist Ordinals<\/strong><\/p>\n<p style=\"font-weight: 400;\">Bruno Jacinto (LanCog, University of Lisbon)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">10 October 2025, 16:00 (Lisbon Time \u2013 WET)<\/p>\n<p style=\"font-weight: 400;\">Faculdade de Letras de Lisboa<\/p>\n<p style=\"font-weight: 400;\">Sala Mattos Rom\u00e3o [C201.J] (Departamento de Filosofia)<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\"><strong>Abstract:\u00a0<\/strong>Ordinals are commonly identified with particular kinds of sets. This identification is, however, highly implausible. Accordingly, in this talk I develop an \u201cupper logicist\u201d characterization of ordinals inspired by (i) Cantor\u2019s view that ordinals are abstractions of well-orderings, and (ii) Russell\u2019s view that such abstractions are higher-order entities. After reviewing important challenges to abstractionist characterizations of ordinals, and to Florio &amp; Leach-Krouse\u2019s (2017) recent logicism about ordinals, I will show that the upper logicist characterization does not fall prey to those challenges. I will conclude by sketching how my characterization paves the way for a defense of Upper Logicism \u2013 in the sense of (Jacinto 2024) \u2013 about ordinals as well as about sets.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Upper Logicist Ordinals Bruno Jacinto (LanCog, University of Lisbon) &nbsp; 10 October 2025, 16:00 (Lisbon Time \u2013 WET) Faculdade de Letras de Lisboa Sala Mattos Rom\u00e3o [C201.J] (Departamento de Filosofia) &nbsp; Abstract:\u00a0Ordinals are commonly identified with particular kinds of sets. This identification is, however, highly implausible. Accordingly, in this talk I develop an \u201cupper logicist\u201d [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"federate","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2081","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/posts\/2081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/comments?post=2081"}],"version-history":[{"count":1,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/posts\/2081\/revisions"}],"predecessor-version":[{"id":2082,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/posts\/2081\/revisions\/2082"}],"wp:attachment":[{"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/media?parent=2081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/categories?post=2081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cful.demiurgos.eu\/lancog\/wp-json\/wp\/v2\/tags?post=2081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}