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Displaying: 11-20 of 45 documents


estudios
11. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Eloy Rada Teorías y significado
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The purpose of this paper is to outline a thesis which in some ways attemts to retrieve the value of meaning as a constituent element of theories. It will be argued that theories possess in common a more or less explicit relational structure, but, at the same time, they possess a meaningful function by means of which they are instruments of knowledge or, rather, by means of which theories have the value ofknowledge in science. In conclusion, it will be suggested that this approach to theories allows those with weak relational structure (social, historical theories, etc.) to be treated with a degree of adequacy by the philosophy of science. Likewise, it will be suggested that the method of semantic analysis linked to the theory of “possible worlds” could be fruitful for this purpose.
12. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Javier Echeverría La identidad de las figuras geométricas
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The Erlanger Program of F. Klein ensures a ground for the ὲ́κθεσις procedure, which has not been much studied in the recent debates about geometrical analysis, but refers to a more general problem: the identity of a sign within a sign system, and the attempts of reduction of the mentioned system by another one. The exampIe considered is the reduction of the conics to characteristic rectangles realized by Apollonius. Starting from Klein and Apollonius, as weIl as from cartesian geometry, the figures are considered as geometric signs, and the proposed analysis of sign identity are conceived as models to follow in the analysis of identity of mathematical signs in general.
13. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
José Ferrater Mora Nota sobre “Los lenguajes de la historia”
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The article starts from previous contributions by the author about “Languages of History” (Dianoia, 1970), in which he distinguished three types of statements used by historians. In this context, he analyzes the various relationships between these three following languages (I, 11 and III): the positivist, the hermeneutic, and the recursive ones. After analyzing the two first ways in their strong and weak versions, the author decides in favour of the third one, in its weak or informal version.
14. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Yon Pérez Laraudogoitia Interpretación modal de la mecánica cuántica
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In this paper, we present a (propositionaI) modal-Iogic approximation to Quantum Mechanics from a reduced and characteristic number of “crucial experiments” and so independently of the lattice of subspaces of Hilbert space. Kripke’s semantics, which determinates this system, allows to define, from a new point of view, the notions of “measurement process” and “virtual world” and admits a natural interpretation which in turn can help us to understand the measurement problem. In this way, we can attempt a “many-worlds” interpretation of Quantum Mechanics, in the way of Everett.
15. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
José M. Méndez Systems with the converse Ackermann property
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A system S has the “converse Ackermann property” (C.A.P.) if (A -> B) -> C is unprovable in S whenever C is a propositional variable. In this paper we define the fragments with the C.A.P. of some well-know propositional systems in the spectrum between the minimal and classical logic. In the first part we succesively study the implicative and positive fragments and the full calculi. In the second, we prove by a matrix method that each one of the systems has the C.A.P. Thus, we think the problem proposed in Anderson & Belnap (1975) § 8.12 has been solved.
16. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Yosu Yurramendi Datuen analisia eta enuntziatuen logika
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17. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Yosu Yurramendi Analisis de datos y lógica de enunciados
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We understand by data analysis the full set of methods which are used to point out the structural relations between certain objects and the characteristics observed in them. In the case where these characteristics admit a process of dichotomy, the relations can be expressed in terms of propositional logic.In the present paper, we endeavour to make clear the opposition between the problems of propositional logic and those of certain model utilised in data analysis: in propositional logic, we look for a solution verified by a given set of propositions; as long as we are concerned with data analysis, we look for a solution in terms of propositions which include as proper parts the observed objects.Finally, we draw the main lines of two very used methods which can be relevant with the aid of computer: the factor analysis and the automatic classification (cluster analysis).
18. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Ernesto García Camarero Bases de datos y representación del conocimiento
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The computer has three fundamental analogies with the human being (senses, memory and intelligence), but the coming out of the data bases announced a new form of language: the computer language. The data bases not only set several new technical and social problems, but moreover are modifying the traditional form of social memory, supported by paper, by changing it in a memory based on electronic means. This situation creates new forms of representation of knowledge to which the author gave attention in previous contributions with his SENECA project, in which computer language tries to give a synthesis of oral and written languages, with their respective advantages.
notas
19. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Jesús María Goñi Zabala Logika euskeraz
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20. Theoria. Revista de Teoría, Historia y Fundamentos de la Ciencia: Volume > 1 > Issue: 1
Jesús María Goñi Zabala Lógica en euskera
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