180 found
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  1. Probability Theory and Probability Logic.Peter Roeper & Hugues Leblanc - 1999
  2.  3
    Truth-Value Semantics.Hugues Leblanc - 1976 - Distributor, Elsevier/North-Holland.
  3. Nondesignating Singular Terms.Hugues Leblanc & Theodore Hailperin - 1959 - Philosophical Review 68 (2):239-243.
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  4. A New Interpretation of C (H, E).Hugues Leblanc - 1960 - Philosophy and Phenomenological Research 21 (3):373-376.
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  5.  24
    Completeness of Relevant Quantification Theories.Robert K. Meyer, J. Michael Dunn & Hugues Leblanc - 1974 - Notre Dame Journal of Formal Logic 15 (1):97-121.
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  6.  5
    Deductive Logic.Hugues Leblanc - 1972 - Boston: Allyn & Bacon.
  7.  20
    Probabilistic Semantics for First-Order Logic.Hugues Leblanc - 1979 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 25 (32):497-509.
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  8.  12
    Probabilistic Semantics for First‐Order Logic.Hugues Leblanc - 1979 - Mathematical Logic Quarterly 25 (32):497-509.
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  9.  27
    On Carnap and Popper Probability Functions.Hugues Leblanc & Bas C. van Fraassen - 1979 - Journal of Symbolic Logic 44 (3):369 - 373.
  10.  21
    Probability Functions and Their Assumption Sets — the Singulary Case.Hugues Leblanc - 1983 - Journal of Philosophical Logic 12 (4):379 - 402.
  11.  21
    Truth, Syntax and Modality.Hugues Leblanc (ed.) - 1973 - Amsterdam: North-Holland.
    Provability, Computability and Reflection.
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  12.  4
    Truth-Value Semantics.Hugues Leblanc - 1978 - Journal of Symbolic Logic 43 (2):376-377.
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  13.  13
    Indiscernibility and Identity in Probability Theory.Peter Roeper & Hugues Leblanc - 1990 - Notre Dame Journal of Formal Logic 32 (1):1-46.
  14. On so-Called Degrees of Confirmation.Hugues Leblanc - 1959 - British Journal for the Philosophy of Science 10 (40):312-315.
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  15.  20
    The Demarcation Line Between Intuitionist Logic and Classical Logic.Hugues Leblanc & Richmond H. Thomason - 1966 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 12 (1):257-262.
  16.  3
    Existence, Truth, and Probability.Hugues Leblanc - 1980 - State University of New York Press.
    Introductions to the parts of the book cover the history of the contributions and their importance. The essays have been thoroughly revised since their publication in learned journals.
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  17.  34
    The Autonomy of Probability Theory (Notes on Kolmogorov, Rényi, and Popper).Hugues Leblanc - 1989 - British Journal for the Philosophy of Science 40 (2):167-181.
    Kolmogorov's account in his [1933] of an absolute probability space presupposes given a Boolean algebra, and so does Rényi's account in his [1955] and [1964] of a relative probability space. Anxious to prove probability theory ‘autonomous’. Popper supplied in his [1955] and [1957] accounts of probability spaces of which Boolean algebras are not and [1957] accounts of probability spaces of which fields are not prerequisites but byproducts instead.1 I review the accounts in question, showing how Popper's issue from and how (...)
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  18.  1
    Alternatives to Standard First-Order Semantics.Hugues Leblanc, D. Gabbay & F. Guenthner - 1989 - Journal of Symbolic Logic 54 (4):1483-1484.
  19.  39
    Probability Functions and Their Assumption Sets — the Binary Case.Hugues Leblanc & Charles G. Morgan - 1984 - Synthese 60 (1):91 - 106.
  20.  9
    Probability Theory, Intuitionism, Semantics and the Dutch Book Argument.Charles G. Morgan & Hugues Leblanc - 1983 - Notre Dame Journal of Formal Logic 24 (3):289-304.
  21.  16
    On Relativizing Kolmogorov's Absolute Probability Functions.Hugues Leblanc & Peter Roeper - 1989 - Notre Dame Journal of Formal Logic 30 (4):485-512.
  22.  29
    Of A and B Being Logically Independent of Each Other and of Their Having No Common Factual Content.Peter Roeper & Hugues Leblanc - 1995 - Theoria 61 (1):61-79.
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  23. Popper's 1955 Axiomatization of Absolute Probability.Hugues Leblanc - 1982 - Pacific Philosophical Quarterly 63 (2):133.
     
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  24.  11
    Truth-Value Semantics for a Logic of Existence.Hugues Leblanc - 1971 - Notre Dame Journal of Formal Logic 12 (2):153-168.
  25.  15
    Two Shortcomings of Natural Deduction.Hugues Leblanc - 1966 - Journal of Philosophy 63 (2):29-37.
  26.  18
    Extending Ω-Consistent Sets to Maximally Consistent, Ω-Complete Sets.George Weaver, Michael Thau & Hugues Leblanc - 1990 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 36 (5):381-383.
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  27.  18
    That Principia Mathematica, First Edition, has a Predicative Interpretation After All.Hugues Leblanc - 1975 - Journal of Philosophical Logic 4 (1):67 - 70.
  28.  30
    On Requirements for Conditional Probability Functions.Hugues Leblanc - 1960 - Journal of Symbolic Logic 25 (3):238-242.
  29.  2
    Existence, Truth and Provability.Ermanno Bencivenga & Hugues LeBlanc - 1985 - Journal of Symbolic Logic 50 (1):227.
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  30.  16
    An Extension of the Équivalence Calculus.Hugues Leblanc - 1961 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 7 (7-10):104-105.
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  31.  16
    A Completeness Result for Quantificational Tense Logic.Robert P. McArthur & Hugues Leblanc - 1976 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 22 (1):89-96.
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  32.  20
    A Revised Version of Goodman's Confirmation Paradox.Hugues Leblanc - 1963 - Philosophical Studies 14 (4):49 - 51.
  33.  16
    Getting the Constraints on Popper's Probability Functions Right.Hugues Leblanc & Peter Roeper - 1993 - Philosophy of Science 60 (1):151-157.
    Shown here is that a constraint used by Popper in The Logic of Scientific Discovery (1959) for calculating the absolute probability of a universal quantification, and one introduced by Stalnaker in "Probability and Conditionals" (1970, 70) for calculating the relative probability of a negation, are too weak for the job. The constraint wanted in the first case is in Bendall (1979) and that wanted in the second case is in Popper (1959).
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  34.  40
    A New Semantics for First-Order Logic, Multivalent and Mostly Intensional.Hugues Leblanc - 1984 - Topoi 3 (1):55-62.
  35.  35
    On Meyer and Lambert's Quantificational Calculus FQ.Hugues LeBlanc - 1968 - Journal of Symbolic Logic 33 (2):275-280.
  36.  8
    On Characterizing Unary Probability Functions and Truth-Value Functions.Hugues Leblanc - 1985 - Canadian Journal of Philosophy 15 (1):19 - 24.
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  37.  19
    Consequence and Confirmation.Peter Roeper & Hugues Leblanc - 1995 - Notre Dame Journal of Formal Logic 36 (3):341-363.
    Gentzen's account of logical consequence is extended so as to become a matter of degree. We characterize and study two kinds of function G, where G(X,Y) takes values between 0 and 1, which represent the degree to which the set X of statements (understood conjunctively) logically implies the set Y of statements (understood disjunctively). It is then shown that these functions are essentially the same as the absolute and the relative probability functions described by Carnap.
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  38.  1
    The Demarcation Line Between Intuitionist Logic and Classical Logic.Hugues Leblanc & Richmond H. Thomason - 1966 - Mathematical Logic Quarterly 12 (1):257-262.
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  39.  12
    Lehrbuch der Logistik.Hugues Leblanc - 1956 - Journal of Philosophy 53 (18):566-567.
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  40.  34
    On Definitions.Hugues Leblanc - 1950 - Philosophy of Science 17 (4):302-309.
  41.  20
    Boolean Algebra and the Propositional Calculus.Hugues Leblanc - 1962 - Mind 71 (283):383-386.
  42.  5
    What Price Substitutivity? A Note on Probability Theory.Hugues Leblanc - 1981 - Philosophy of Science 48 (2):317-322.
    Teddy Seidenfeld recently claimed that Kolmogorov's probability theory transgresses the Substitutivity Law. Underscoring the seriousness of Seidenfeld's charge, the author shows that (Popper's version of) the law, to wit: If (∀ D)(Pr(B,D)=Pr(C,D)), then Pr(A,B)=Pr(A,C), follows from just C1. 0≤ Pr(A,B)≤ 1 C2. Pr(A,A)=1 C3. Pr(A & B,C)=Pr(A,B & C)× Pr(B,C) C4. Pr(A & B,C)=Pr(B & A,C) C5. Pr(A,B & C)=Pr(A,C & B), five constraints on Pr of the most elementary and most basic sort.
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  43.  8
    Proof Routines for the Propositional Calculus.Hugues Leblanc - 1963 - Notre Dame Journal of Formal Logic 4 (2):81-104.
  44.  31
    Absolute Probability Functions for Intuitionistic Propositional Logic.Peter Roeper & Hugues Leblanc - 1999 - Journal of Philosophical Logic 28 (3):223-234.
    Provided here is a characterisation of absolute probability functions for intuitionistic (propositional) logic L, i.e. a set of constraints on the unary functions P from the statements of L to the reals, which insures that (i) if a statement A of L is provable in L, then P(A) = 1 for every P, L's axiomatisation being thus sound in the probabilistic sense, and (ii) if P(A) = 1 for every P, then A is provable in L, L's axiomatisation being thus (...)
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  45. Truth, Syntax and Modality Proceedings of the Temple University Conference on Alternative Semantics.Hugues Leblanc - 1973
     
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  46.  10
    Introduction to Symbolic Logic and its Applications. [REVIEW]Hugues Leblanc - 1960 - Journal of Philosophy 57 (9):311-313.
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  47. Conditionals and Conditional Probabilities: Three Triviality Theorems.Hugues Leblanc & Peter Roeper - 1990 - In Kyburg Henry E., Loui Ronald P. & Carlson Greg N. (eds.), Knowledge Representation and Defeasible Reasoning. Kluwer Academic Publishers. pp. 287--306.
  48.  7
    Probabilistic Semantics: An Overview.Hugues Leblanc - 1980 - Philosophia 9 (2):231-249.
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  49.  9
    A Simplified Account of Validity and Implication for Quantificational Logic.Hugues LeBlanc - 1968 - Journal of Symbolic Logic 33 (2):231-235.
  50. Review: Boleslaw Sobocinski, On Well Constructed Axiom Systems. [REVIEW]Hugues Leblanc - 1957 - Journal of Symbolic Logic 22 (4):358-359.
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