Identity and Necessity
{"WorkMasterId":7077,"WpPageId":287519,"ParentWpPageId":193832,"Slug":"identity-and-necessity","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/saul-kripke/identity-and-necessity/","RelativeUrl":"theos/humanities/philosophy/philosophers/saul-kripke/identity-and-necessity/","HasFullText":false,"RawHtmlLength":68204,"CleanHtmlLength":14950,"Kicker":"Philosophy Work","Title":"Identity and Necessity","Deck":"Kripke argues that identity claims involving rigid designators are necessary if true, reshaping debates over necessity, names, and mind-body identity.","BackLink":{"Text":"Back to Saul Kripke","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/saul-kripke/"},"AuthorCard":{"Label":"Author","Title":"Saul Kripke","Url":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/saul-kripke/","MediaHref":"","ImageSrc":"https://chrisdeasy.com/wp-content/uploads/saul-kripke-01-kripke-in-2005.jpg","ImageAlt":"Saul Kripke in 2005","FilterTerra":"North America","ClickText":"Saul Kripke","ClickHref":"https://chrisdeasy.com/theos/humanities/philosophy/philosophers/saul-kripke/","Copies":["1940 CE – 2022 CE","Bay Shore, New York","American analytic philosopher and logician known for Kripke semantics, rigid designation, necessary a posteriori truth, truth theory, and rule-following skepticism."]},"ContextCards":[{"Label":"Period","Key":"Period:5","Title":"Contemporary History","DateText":"1945 CE – 2065 CE","Url":"https://chrisdeasy.com/theos/humanities/philosophy/eras-of-thought/philosophers-of-contemporary-history/"},{"Label":"Era","Key":"Era:12","Title":"World War Era","DateText":"1914 CE – 1944 CE","Url":"https://chrisdeasy.com/theos/humanities/philosophy/eras-of-thought/philosophers-of-modern-history/philosophers-of-the-world-war-era/"},{"Label":"Composition","Title":"1971 CE","Url":"","DateText":""}],"DateNote":"Site-normalized composition estimate: 1971 CE. This is not a publication date.","GeoCards":[{"Label":"Region","Key":"Region:1"},{"Label":"Terra Avita","Key":"TerraAvita:6"},{"Label":"Terra Avita Region","Key":"TerraAvitaRegion:25"},{"Label":"Modern Country","Key":"Country:USA:6"}],"OriginalTitle":"Identity and Necessity","Language":"English","DisciplineCards":[{"Label":"Primary Discipline","Key":"Discipline:metaphysics"},{"Label":"Secondary Discipline","Key":"Discipline:philosophy-of-language"}],"Tradition":"Analytic philosophy, modal logic, metaphysics, philosophy of language, formal semantics, truth theory, epistemology, and philosophy of mind","FullText":null,"CoreThesis":["Kripke argues that identity claims involving rigid designators are necessary if true, reshaping debates over necessity, names, and mind-body identity."],"Classification":{"AlternateTitles":"Identity and necessity; Kripke on identity; necessity of identity","KeyConcepts":"identity; necessity; rigid designation; names; descriptions; mind-body identity; possible worlds; a posteriori necessity","Methodology":"Conceptual and modal argumentation using rigid designation and possible-world comparison.","Structure":"A compact philosophical essay/lecture developing the necessity of identity and its consequences for reference and metaphysics."},"Arguments":["If names rigidly designate the same object in every possible world, then true identity statements involving those names are necessary, even when known a posteriori."],"Influence":{"InfluencedBy":"Frege, Russell, modal logic, possible-world semantics, and debates over names and descriptions.","InfluenceOn":""},"Significance":["Identity and Necessity is a bridge between Kripke\u0027s technical modal logic and the philosophical arguments of Naming and Necessity.","The essay remains central for arguments about identity, essence, necessity, and mind-body physicalism."],"EvidenceNote":["Accepted as a direct Kripke work because it supplies a core metaphysical argument around identity, necessity, and rigid designation."],"MainSections":[{"Kind":"TextSection","Title":"Core Thesis","Paragraphs":["Kripke argues that identity claims involving rigid designators are necessary if true, reshaping debates over necessity, names, and mind-body identity."]},{"Kind":"FieldSection","Title":"Classification","Fields":[{"Label":"Alternate Titles","Value":"Identity and necessity; Kripke on identity; necessity of identity"},{"Label":"Key Concepts","Value":"identity; necessity; rigid designation; names; descriptions; mind-body identity; possible worlds; a posteriori necessity"},{"Label":"Methodology","Value":"Conceptual and modal argumentation using rigid designation and possible-world comparison."},{"Label":"Structure","Value":"A compact philosophical essay/lecture developing the necessity of identity and its consequences for reference and metaphysics."}]},{"Kind":"TextSection","Title":"Arguments","Paragraphs":["If names rigidly designate the same object in every possible world, then true identity statements involving those names are necessary, even when known a posteriori."]},{"Kind":"FieldSection","Title":"Influence","Fields":[{"Label":"Influenced By","Value":"Frege, Russell, modal logic, possible-world semantics, and debates over names and descriptions."},{"Label":"Influence On","Value":"Analytic metaphysics, philosophy of language, philosophy of mind, modal epistemology, and direct reference theory."}]},{"Kind":"TextSection","Title":"Significance","Paragraphs":["Identity and Necessity is a bridge between Kripke\u0027s technical modal logic and the philosophical arguments of Naming and Necessity.","The essay remains central for arguments about identity, essence, necessity, and mind-body physicalism."]},{"Kind":"TextSection","Title":"Evidence Note","Paragraphs":["Accepted as a direct Kripke work because it supplies a core metaphysical argument around identity, necessity, and rigid designation."]}],"SectionSequence":["Back Link","Work Title","Deck","Author","Period","Era","Composition","Date Note","Region","Terra Avita","Terra Avita Region","Modern Country","Original Title","Language","Primary Discipline","Secondary Discipline","Tradition","Core Thesis","Classification","Arguments","Influence","Significance","Evidence Note"],"Counts":{"ContextCards":3,"GeoCards":4,"DisciplineCards":2,"Links":11,"Sections":23,"Styles":2,"Scripts":1}}