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On Relations between Structures

Theoria 32 (3):172-185 (1966)

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  1. Ultraproducts and Elementary Classes.H. Jerome Keisler - 1962 - Journal of Symbolic Logic 27 (3):357-358.
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  • Theory of models with generalized atomic formulas.H. Jerome Keisler - 1960 - Journal of Symbolic Logic 25 (1):1-26.
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  • Some applications of infinitely long formulas.H. Jerome Keisler - 1965 - Journal of Symbolic Logic 30 (3):339-349.
    Introduction. This paper is a sequel to our paper [3]. In that paper we introduced the notion of a finite approximation to an infinitely long formula, in a language L with infinitely long expressions of the type considered by Henkin in [2]. The results of the paper [3] show relationships between the models of an infinitely long sentence and the models of its finite approximations. In the present paper we shall apply the main result of [3] to prove a number (...)
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  • Łos J.. On the extending of models . Fundamenta mathematicae, vol. 42 , pp. 38–54.Łos J. and Suszko R.. On the extending of models . Common extensions. Fundamenta mathematicae, vol. 42 , pp. 343–347.Słomiński J.. On the extending of models . Extensions in equationally definable classes of algebras. Fundamenta mathematicae, vol. 43 , pp. 69–76.Łos J. and Suszko R.. On the extending of models . Infinite sums of models. Fundamenta mathematicae, vol. 44 , pp. 52–60. [REVIEW]H. Jerome Keisler - 1962 - Journal of Symbolic Logic 27 (1):93-95.
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  • The First Order Properties of Products of Algebraic Systems.S. Feferman & R. L. Vaught - 1967 - Journal of Symbolic Logic 32 (2):276-276.
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  • An Application of Games to the Completeness Problem for Formalized Theories.A. Ehrenfeucht - 1967 - Journal of Symbolic Logic 32 (2):281-282.
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  • (1 other version)Linear reasoning. A new form of the herbrand-Gentzen theorem.William Craig - 1957 - Journal of Symbolic Logic 22 (3):250-268.
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  • Homogeneous Universal Models.Michael Morley & Robert Vaught - 1967 - Journal of Symbolic Logic 32 (4):535-535.
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  • A Result on Consistency and Its Application to the Theory of Definition.Abraham Robinson - 1960 - Journal of Symbolic Logic 25 (2):174-174.
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  • Introduction to Model Theory and to the Metamathematics of Algebra.Abraham Robinson - 1963 - Elsevier Publishing Company.
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  • Contributions to the Theory of Models.Alfred Tarski - 1956 - Journal of Symbolic Logic 21 (4):405-406.
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  • Typical Ambiguity.Ernst P. Specker - 1962 - In Ernest Nagel (ed.), Logic, methodology, and philosophy of science. Stanford, Calif.,: Stanford University Press. pp. 116--23.
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  • Introduction to Model Theory and the Metamathematics of Algebra.Abraham Robinson - 1963 - Journal of Symbolic Logic 29 (1):56-56.
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  • (1 other version)Dualitat.Ernst Specker - 1962 - Journal of Symbolic Logic 27 (2):231-231.
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  • Dualität.Von Ernst Specker - 1958 - Dialectica 12 (3‐4):451-465.
    ZusammenfassungDas Axiomensystem der ebenen projektiven Geometrie ist dual in dem Sinne, dass es bei Vertauschung der Begriffe « Punkt » und « Gerade » in sich übergeht. Daraus folgt, dass mit jedem Satz auch der duale Satz aus den Axiomen beweisbar ist. Dagegen kann aus der Dualität des Axiomensystems nicht geschlossen werden, dass in einem Modell mit jedem Satz auch der duale Satz gilt; noch weniger folgt, dass ein Modell eine eineindeutige Abbildung zulässt, welche Punkte and Geraden unter Erhaltung der (...)
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