Elia Zardini<\/p>\n
LANCOG University of Lisbon<\/p>\n
20 April 2018, 16:00<\/strong><\/p>\n Faculdade de Letras de Lisboa<\/strong><\/p>\n Sala Mattos Rom\u00e3o <\/strong>(Departamento de Filosofia)<\/p>\n Abstract:<\/strong> At the core of JC Beall and Greg Restall\u2019s brand of logical pluralism is \u201cGeneralised Tarski\u2019s Thesis\u201d, according to which a relation of logical consequence is characterised by the fact that, in every \u201ccase\u201d where every premise is true, so is the conclusion (with different specifications of \u201ccase\u201d yielding different relations of logical consequence). I argue that the thesis implies that many philosophically interesting substructural logics (non-reflexive, non-monotonic, non-transitive, non-contractive and non-commutative ones) are not relations of logical consequence. I then diagnose the clash as due to the fact that the thesis is not sensitive to plurality in designated value, in connection between premises and conclusion, in premise occurrences and in models. I then extend the argument to the effect that the more general conception of logical consequence as necessary truth preservation clashes with substructurality. I conclude by sketching a proposal as to how we can still uphold a broadly semantic conception of logical consequence. Basically, given a substructural logic L, we can reinterpret truth-preservation conditionals with the notions of conjunction and implication available in L, and say that the fact that, in L, P,Q,R\u2026S logically entail T is grounded in the fact that, in L, the conditional \u2018If \u2018P\u2019 is true and \u2018Q\u2019 is true and \u2018R\u2019 is true\u2026 and \u2018S\u2019 is true, then \u2018T\u2019 is true\u2019 is valid. On this proposal, contrary to the contemporary vulgate, it is logical consequence that is grounded in logical truth rather than vice versa.<\/p>\n","protected":false},"excerpt":{"rendered":" Elia Zardini LANCOG University of Lisbon Generalised Tarski\u2019s Thesis Hits Substructure 20 April 2018, 16:00 Faculdade de Letras de Lisboa Sala Mattos Rom\u00e3o (Departamento de Filosofia) Abstract: At the core of JC Beall and Greg Restall\u2019s brand of logical pluralism is \u201cGeneralised Tarski\u2019s Thesis\u201d, according to which a relation of logical consequence is characterised by […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"","activitypub_status":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-614","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/posts\/614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/comments?post=614"}],"version-history":[{"count":0,"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/posts\/614\/revisions"}],"wp:attachment":[{"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/media?parent=614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/categories?post=614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cful.letras.ulisboa.pt\/lancog\/wp-json\/wp\/v2\/tags?post=614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}