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  1. Ontological relativity and relative identity.Peter Thomas Geach - 1973 - In Milton Karl Munitz (ed.), Logic and ontology. New York,: New York University Press.
     
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  • Reference and generality.P. T. Geach - 1962 - Ithaca, N.Y.,: Cornell University Press. Edited by Michael C. Rea.
  • What is Frege's Relativity Argument?Palle Yourgrau - 1997 - Canadian Journal of Philosophy 27 (2):137-172.
    Sets are multitudes which are also unities. It is surprising that the fact that multitudes are also unities leads to no contradictions: this is the main fact of mathematics.Kurt Gödel (Hao Wang,A Logical Journey: From Gödel to Philosophy)In what sense can something be at the same time one and many? The problem is familiar since Plato (for example,Republic524e). In recent times, Whitehead and Russell, inPrincipia Mathematica,have been struck by the difficulty of the problem: ‘If there is such an object as (...)
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  • Sameness and Substance Renewed.E. J. Lowe - 2003 - Mind 112 (448):816-820.
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  • Sameness and Substance Renewed.David Wiggins - 2005 - Philosophy and Phenomenological Research 71 (2):456-461.
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  • Sameness and substance.David Wiggins - 1980 - Cambridge, Mass.: Harvard University Press.
  • Relative Identity.Leslie Stevenson - 1978 - Philosophical Quarterly 28 (110):83.
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  • Relative identity and Leibniz's law.Leslie Stevenson - 1972 - Philosophical Quarterly 22 (87):155-158.
    The indiscernibility of identicals is incompatible with geach's theory of 'relative' identity, But consistent with the view that x is identical with y iff x is the same a as y, For some count-Noun 'a'. 'x is the same a as y' expresses identity only if x is an a, Otherwise it is merely an equivalence relation.
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  • Relative Identity and Number.John Perry - 1978 - Canadian Journal of Philosophy 8 (1):1-14.
    I argue for the consistency of frege's treatments of identity and number. Specifically, I argue that geach is wrong in suggesting that frege's insights about number should have led him to the doctrine of relative identity.
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  • Logics of Relative Identity.Paweł Garbacz - 2002 - Notre Dame Journal of Formal Logic 43 (1):27-50.
    This paper is the first part of an exploration into the logical properties of relative identity. After providing the semantic grounds for various monadic logics of relative identity, I define the minimal system and its nine extensions. It is suggested that despite their purely formal origin at least some of them may contain nontrivial philosophical insights. All logics are axiomatized by means of sound and complete sequent calculi. I show their affinities with existing formalizations.
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  • Relative identity.Nicholas Griffin - 1977 - Oxford: Clarendon Press.
    The author attacks the view that identity, Like largeness, Is a relative relation. The primary advocate of the view that identity is relative is p.T. Geach. It is argued that geach has not shown that the failure of the identity of indiscernibles principle, As a truth of logic, Forces us to stop taking indiscernibility within particular formal theories or languages as a sufficient condition for identity. The author also argues that the whole notion of relative identity, As explicated by geach, (...)
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  • Reference and generality: an examination of some medieval and modern theories.Peter Thomas Geach - 1980 - Ithaca, N.Y.: Cornell University Press.
  • Mental Acts: Their Content and Their Objects.Peter Geach - 1957 - London, England: Routledge and Kegan Paul.
    ACT, CONTENT, AND OBJECT THE TITLE I have chosen for this work is a mere label for a set of problems; the controversial views that have historically been ...
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  • Mental Acts.Neil Cooper - 1959 - Philosophical Quarterly 9 (36):278-279.
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  • Mental Acts: Their Content And Their Objects.Peter Thomas Geach - 1957 - London, England: Humanities Press.
    ACT, CONTENT, AND OBJECT THE TITLE I have chosen for this work is a mere label for a set of problems; the controversial views that have historically been ...
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  • Die Grundlagen der Arithmetik. Eine logisch mathematische Untersuchung über den Begriff der Zahl.Gottlob Frege - 1884 - Wittgenstein-Studien 3 (2):993-999.
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  • Grundlagen der Arithmetik: Studienausgabe mit dem Text der Centenarausgabe.Gottlob Frege - 1988 - Meiner, F.
    Die Grundlagen gehören zu den klassischen Texten der Sprachphilosophie, Logik und Mathematik. Frege stützt sein Programm einer Begründung von Arithmetik und Analysis auf reine Logik, indem er die natürlichen Zahlen als bestimmte Begriffsumfänge definiert. Die philosophische Fundierung des Fregeschen Ansatzes bilden erkenntnistheoretische und sprachphilosophische Analysen und Begriffserklärungen. Studienausgabe aufgrund der textkritisch herausgegebenen Jubiläumsausgabe (Centenarausgabe). Mit Einleitung, Anmerkungen, Literaturverzeichnis und Namenregister.
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  • Identity and general similarity.Harry Deutsch - 1998 - Philosophical Perspectives 12:177-199.
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  • Identity and General Similarity.Harry Deutsch - 1998 - Noûs 32 (S12):177-199.
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  • Relative Identity and Cardinality.Patricia Blanchette - 1999 - Canadian Journal of Philosophy 29 (2):205 - 223.
    Peter Geach famously holds that there is no such thing as absolute identity. There are rather, as Geach sees it, a variety of relative identity relations, each essentially connected with a particular monadic predicate. Though we can strictly and meaningfully say that an individual a is the same man as the individual b, or that a is the same statue as b, we cannot, on this view, strictly and meaningfully say that the individual a simply is b. It is difficult (...)
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  • Identity and cardinality: Geach and Frege.William P. Alston & Jonathan Bennett - 1984 - Philosophical Review 93 (4):553-567.
    P. T. Geach, notoriously, holds the Relative Identity Thesis, according to which a meaningful judgment of identity is always, implicitly or explicitly, relative to some general term. ‘The same’ is a fragmentary expression, and has no significance unless we say or mean ‘the same X’, where ‘X’ represents a general term (what Frege calls a Begriffswort or Begriffsausdruck). (P. T. Geach, Mental Acts (London: Routledge and Kegan Paul, 1957), p. 69. I maintain that it makes no sense to judge whether (...)
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  • Grundlagen der Arithmetik: Studienausgabe mit dem Text der Centenarausgabe.Gottlob Frege - 1884 - Breslau: Wilhelm Koebner Verlag.
    Die Grundlagen gehören zu den klassischen Texten der Sprachphilosophie, Logik und Mathematik. Frege stützt sein Programm einer Begründung von Arithmetik und Analysis auf reine Logik, indem er die natürlichen Zahlen als bestimmte Begriffsumfänge definiert. Die philosophische Fundierung des Fregeschen Ansatzes bilden erkenntnistheoretische und sprachphilosophische Analysen und Begriffserklärungen. Studienausgabe aufgrund der textkritisch herausgegebenen Jubiläumsausgabe (Centenarausgabe). Mit Einleitung, Anmerkungen, Literaturverzeichnis und Namenregister.
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  • Sameness and Substance Renewed.David Wiggins - 2001 - New York: Cambridge University Press. Edited by David Wiggins.
    In this book, which thoroughly revises and greatly expands his classic work Sameness and Substance, David Wiggins retrieves and refurbishes in the light of twentieth-century logic and logical theory certain conceptions of identity, of substance and of persistence through change that philosophy inherits from its past. In this new version, he vindicates the absoluteness, necessity, determinateness and all or nothing character of identity against rival conceptions. He defends a form of essentialism that he calls individuative essentialism, and then a form (...)
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  • Kinds of Being: A Study of Individuation, Identity, and the Logic of Sortal Terms.Edward Jonathan Lowe - 1989 - New York, NY, USA: Blackwell.
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  • Identity.Peter T. Geach - 1967 - Review of Metaphysics 21 (1):3 - 12.
    Absolute identity seems at first sight to be presupposed in the branch of formal logic called identity theory. Classical identity theory may be obtained by adjoining a single schema to ordinary quantification theory.
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  • .David Wiggins - 2005 - Philosophy and Phenomenological Research:442-448.
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  • Sameness and substance.David Wiggins - 1980 - Revue Philosophique de la France Et de l'Etranger 174 (1):125-128.
     
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  • Sameness and Substance Renewed.David Wiggins - 2001 - Philosophy 79 (307):133-141.
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  • Sameness and Substance.David Wiggins - 1981 - Philosophical Quarterly 31 (124):260-268.
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  • Ueber Sinn und Bedeutung.Gottlob Frege - 1948 - Philosophical Review 57:209.
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  • Reference and Generality: An Examination of Some Medieval and Modern Theories.Peter Thomas Geach - 1964 - Mind 73 (292):575-583.
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  • Kinds of Being.E. J. Lowe - 1989 - Philosophy 66 (256):248-249.
     
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