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Profile: Lorenzo Peña (Spanish national council for scientific research)
  1. Lorenzo Peña, Cultural Relativism and Philosophy : North and Latin American Perspectives.
    Introductory Remarks Why Paradigm Variation is Ensuant upon Contradiction How Externalistic Warrant Parries the Threat of [Truth] Relativism Why Not to Ward Relativism off by Means of Foundationalistic Justification Defending a relativistic View of Warrant A Transcendental Argument against [Truth] Relativism Towards [Partial] convergence A Gradualistic Paraconsistent Way to Convergence 7.1. - Perspectivism and Non Copulative Paraconsistent Logics 7.2. - The Strength and Weakness of Two Copulative Approaches to Paraconsistent Logic 7.3. - The Logic of Contradictorial Gradualism 7.4. - Implementing (...)
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  2. Lorenzo Peña, -Compatible Transitive Extensions of System CT Logique Et Analyse.
    Da Costa's paraconsistent systems of the series Cm (for finite m) (see [C1], [C2], and esp. [C3], pp. 237ff.) share important features with transitive logic, TL (which has been gone into in [P1] and [P2]), namely, they all coincide in that: (c1) they possess a strong negation, `¬', a conditional, `⊃', a conjunction, `∧', and a disjunction, `∨', with respect to which they are conservative extensions of CL or Classical Logic; (c2) they possess a non strong negation, `N' (notations are (...)
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  3. Lorenzo Peña, Dialéctica, Dialéctica, Lógica Y Formalización: Formalización: De Hegel a la Filosofía Analítica.
    En este trabajo estudio algunas de las convergencias y divergencias entre dos concepciones filosóficas que coinciden en reconocer la contradictorialidad de lo real, o sea: que coinciden en ser dialécticas. Trátase de la filosofía de Hegel y de la concepción que en muy diversos trabajos y desde hace años vengo denominando ontofántica, concepción cuya aceptación de la contradictorialidad de lo real se sitúa más en la línea de Platón que en la de Hegel.
     
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  4. Lorenzo Peña, Is Reasoning the Same as Relevant Inference?
    There are two main approaches to a theory of rationality: the positive one and the negative one. The latter, which has gained increasing acceptance, is primarily concerned with rejecting what is irrational, which usually is equated with what is inconsistent. The positive approach has a quite different purpose, that of studying reasoning and, insofar as possible, enhancing the patterns or standards of our reasoning practice.
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  5. Lorenzo Peña, Leibniz on the Principle of Transition.
    Arthur Lovejoy's masterful, highly influential interpretation of Leibniz's philosophy has been almost neglected for decades now. This paper tries to rehabilitate Lovejoy's construal (with a number of adaptations) by delving into the underlying logical links connecting Leibniz's principles of order and gradation (the latter also called `law of continuity', `principle of transition' or `principle of the jumpless change': natura non facit saltus ) with other fundamental principles of his mature philosophy.
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  6. Lorenzo Peña, Naturalized Epistemology and Degrees of Knowledge.
    Still, it is but fair for me to point out that several of the mainstays of the present proposal owe very little to the influence of the philosophers whose epistemological views have attracted me most — or for that matter to that of other analytical philosophers. I am referring to my acknowledging degrees of truth and existence and, consequently, degrees of knowledge, too.
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  7. Lorenzo Peña, Phonology.
    Phonemes are minimal segments within the spoken message whose presence is relevant for distinguishing one message from a different one with another meaning. Each phoneme underlies different phonetic realizations. What sets a phoneme from another is fuzzy cluster of the fuzzy features. Thus the study of phonemic structures is likely to have much to gain from a gradualistic approach. Through a gradualistic treatment synchronic phonology could tally with the diachronic study in a simpler way than is customary. In this connection, (...)
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  8. Lorenzo Peña, Philosophy Research Archives.
    This essay belongs to a series of papers whose aim is to show that some differing accounts of relations in contemporary philosophy (commencing with Frege) are flawed because they resort to what can be labelled `hylomorphism'. Some standard difficulties of Aristotelianism reappear in these analytical approaches. All of them resort to «form» as playing the role of `«ctualizing» a given «matter» (objects taken as arguments, relata, or a relation along with the related terms -- the form then being, e.g., (...)
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  9. Lorenzo Peña, Sofia.
    The main claim of this paper is that the boundary between scientific and non scientific knowledge does exist -- which means several things. First, it's not the case that anything goes: some irrationalists have been mistaken into acceptance of that wrong conclusion because they have remarked that, however the boundary might be drawn, some important scientific developments would fall afoul of the standards entitling a research practice to count as scientific. Second, the boundary is not an imaginary one, that is (...)
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  10. Lorenzo Peña, Sorites.
    Raúl Orayen's Lógica, significado y ontología Foot note is a profound book, a thorough inquiry into several important issues in the philosophy of logic. Raúl Orayen is one of the outstanding analytical philosophers in the Spanish speaking world. As in his other publications, he displays a masterly reasoning power. No patched up solutions in this book. Orayen is not going to let what he takes to be unsatisfactory treatments off the hook with vague considerations of their being able to cope (...)
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  11. Lorenzo Peña, To Be Delivered at the 3d Symposium Platonicum.
    It is widely known that Plato seems to be committed in a number of dialogues to the view that all perfections are “united” — whether such unity is construed as identity, which doesn’t lack textual evidence, or, more probably, as some kind of mutual “supervenience”. (See for instance Laches 199e3-4, Alcib. I 114d-116d, Protag. 329c-333d & 349a-c. Whatever the solution to those interpretive problems is, what anyway can be ascertained is that, when writing the Statesman, our philosopher is keen on (...)
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  12. Lorenzo Pena (forthcoming). Essence and Existence in Leibniz's Ontology. Synthesis Philosophica.
    The concept of every real thing from all eternity contains the unavoidability of its existence before the divine decision. Thus every complete concept of a real thing contains the property of being such that the thing will exist if a created universe exists. Then a thing's existence cannot be external to its concept. There is bound to be more in the concept of something that exists than in that of "something" that does not-since existence is explained through the quidditative property (...)
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  13. Lorenzo Peña (2013). La frontera entre hecho y derecho: La norma jurídica extranjera como supuesto fáctico. In René González de la Vega & Guillermo Lariguet (eds.), Problemas de filosofía del Derecho: Nuevas perspectivas.
    While lawers and philosophers of law show the difference between matters of fact and normative situations, this paper proves that the difference is not crisp, since, in accordance with usual international private law, foreign juridical norms are, in principle, considered facts, but only up to a certain degree.
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  14. Txetxu Ausín Díez & Lorenzo Peña (2011). Premisa/Conclusión. In Luis Vega and Paula Olmos (ed.), Compendio de Lógica, Argumentación y Retórica. Editorial Trotta.
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  15. Lorenzo Peña (2011). La significación jurídico-política del republicanismo. Dilemata 5:99-130.
    This paper develops several insights put forward in the book Republican Studies. It goes into the difference between republicanism as a concept pertaining to legal theory, i.e. a system free from dynastic power, and the political-philosophy trend which currently goes by the same name, also known as `civicism', hinging upon the notion of freedom as non-domination. As against such a view, the value of a classical notion of liberty is maintained. Further grounds to choose a republic rather than a monarchy (...)
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  16. Txetxu Ausín & Lorenzo Peña, Arguing From Facts to Duties (and Conversely).
    7 pages.-- Delivered to: 5th International Conference on Argumentation, The International Society for the Study of Argumentation (ISSA), University of Amsterdam, 25-28 June 2002.
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  17. Lorenzo Peña, Cuatro Obras de Mauricio Beuchot.
    The paper examines Beuchot's approach and agrees that there are many coincidences between medieval Aristotelianism and analytical philosophy. Both pursue philosophical inquiry in an argumentative manner. Nowadays analytical philosophy also tends to recognize as genuine such traditional metaphysical problems as were debated by the Scholastics. The paper's only criticism at Beuchot's views concerns analogy and reduplicative as-clauses. It argues that on that issue the cleavage between medieval and analytical philosophy lies in the latter's tending to favor complete equivocality of the (...)
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  18. Lorenzo Peña & Manuel Liz, Critical Notice of Subject, Thought and Context.
    The main starting point of many of the contributions collected into the book is the kind of Twin Earth considerations, along with meaning individualism. Is Putnam's claim about water in this world and a stuff in an alternative world being different materials?. Is meaning in the head? One seems allowed to be skeptical about the starting point of the debate between such as emphasize broad content and those who think that the basic semantic entities are narrow contents, which would fail (...)
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  19. Lorenzo Peña (2006). Imperativos, preceptos y normas. Logos 39:111-142.
    The paper goes into the intricate logical relation between imperatives, precepts and norms. It shows that there need not be two senses of "ought", the one descriptive and the other prescriptive, since when the law-giver enacts a fresh statute he is hereby making a tru statement, whose truth is grounded on the statement itself.
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  20. Lorenzo Peña (2006). La obligación de aplicar las normas jurídicas vigentes. Isegoría 35:221-244.
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  21. Lorenzo Peña (2002). El derecho de extranjería en los ordenamientos constitucionales. Isegoría 26:181-217.
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  22. Lorenzo Peña & Txetxu Ausín (2002). Libertad de vivir. Isegoría 27:131-149.
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  23. Lorenzo Peña (1999). ¿ Somos los únicos animales racionales? Teorema: Revista Internacional de Filosofía 18 (3):229-253.
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  24. Lorenzo Peña (1999). The Coexistence of Contradictory Properties in the Same Subject According to Aristotle. Apeiron 32 (3):203 - 229.
  25. Lorenzo Peña (1998). El hombre como animal cultural en el tratamiento de Carlos París. Isegoría 19:171-182.
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  26. Lorenzo Peña (1998). Razonamiento e inferencia relevante. Ideas y Valores 106:96-121.
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  27. Lorenzo Peña (1997). El Bien Común, Principio Básico de la Ley Natural. Isegoría 17:137-163.
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  28. Lorenzo Peña (1995). La igualdad intelectual como principio de lo múltiple en el pensamiento del Cusano. Anuario Filosófico 28 (3):711-736.
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  29. Lorenzo Pena & L. I. Z. Manuel (1995). University of la Laguna Canary Islands Spain. Philosophia 24:248.
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  30. Lorenzo Peña (1994). Review of: Nicola Grana, Sulla teoria delle valutazioni di NCA da Costa and Contraddizione e incompletezza. [REVIEW] European Review of Philosophy 1:172-173.
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  31. Robert Sternfeld, Graeme Forbes, Ronald M. Green, Lorenzo Peña, Manuel Liz & Mark Rowlands (1994). Book Reviews. [REVIEW] Philosophia 24 (1-2):225-252.
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  32. Lorenzo Peña (1993). Critical Notice of Douglas Walton's Slippery Slope Arguments. Pragmatics and Cognition 1 (2):401-410.
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  33. Lorenzo Peña (1993). Grados de posibilidad metafísica. Revista de Filosofía (Madrid) 9:15.
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  34. Lorenzo Peña (1993). Introducción a las lógicas no clásicas. Universidad Nacional Autónoma de México.
    A comparative study of a broad range of logical systems, showing that classical logic is just one among them and thate there are useful nonclassical logics which are conservative extensions of classical logic, by risorting to several negations and several implications. The book is oriented towards a defense of fuzzy logics.
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  35. Lorenzo Peña (1993). In Defense of Full-Scale Planning. Science and Society 57 (2):204 - 213.
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  36. Lorenzo Peña (1993). Le choix de Dieu et le principe du meilleur. Dialectica 47 (2‐3):217-254.
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  37. Lorenzo Pena (1993). Douglas Walton: Slippery Slope Arguments. Pragmatics and Cognition 1 (2):401-410.
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  38. José Manuel Sánchez Ron, Reyes Mate, José María Mardones, Fernando Quesada & Lorenzo Peña (1993). Informaciones. Isegoría 8:228-232.
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  39. Lorenzo Peña (1992). Algunas aplicaciones filosóficas de las lógicas multivalentes. Theoria 7 (1/2/3):141-163.
    Many-Valued logics can harbour nonclassical connectives expressing truth-nuances. The course of development of many-valued logics has given rise to paraconsistent systems wherein a sentence can be both negated and asserted just in case it is only partly true. A recently implemented family of such logics is shown to be a useful tool in coping with a number of philosophical difficulties, such as Zeno’s paradox of the arrow. This family is somehow akin to fuzzy logics initiated by Zadeh, but unlike them (...)
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  40. Lorenzo Peña (1992). La metafísica de Hector Castañeda. Theoria 7 (1/2/3):387-407.
    Castañeda’s most significant insights iie in his awareness of serious ontologicaI problems, which beset usual treatments. Among this outstandlng proposals are these about the structure of relational facts, guise theory and the bundle view of individuals, the I, and practitions. Castañeda’s metaphysics Is one of the most remarkable achievements in anaytical philosophy.
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  41. Lorenzo Peña (1991). Contradictions and Paradigms: A Paraconsistent Approach. In Marcelo Dascal (ed.), Cultural Relativism and Philosophy: North and Latin American Perspectives. E.J. Brill. 7--29.
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  42. Lorenzo Peña (1991). Crónica de: Neopositivismo y epistemología: VI Encuentro de la Sociedad Castellano-Leonesa de Filosofía. Theoria 14 (15):325-327.
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  43. Lorenzo Peña (1991). De la Logique Combinatoire Des 'Generales Inquisitiones' aux Calculs Combinatoires Contemporains. Theoria 6 (1):129-159.
    In his 1686 essay GI Leibniz undertook to reduce sentences to noun-phrases, truth to being. Such a reduction arose from his equating proof with conceptual analysis. Within limits Leibniz’s logical calculus provides a reasonable way of surmounting the dichotomy, thus allowing a reduction of hypothetical to categorical statements. However it yields the disastrous result that, whenever A is possible and so is B, there can be an entity being both A and B. Yet, Leibniz was in the GI the forerunner (...)
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  44. Lorenzo Peña (1991). Los dilemas morales en la filosofía analítica. Isegoría 3:43-79.
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  45. Lorenzo Peña (ed.) (1991). Rudimentos de lógica matemática. Libros CSIC.
    A systematic introduction to mathematical logic which does not take classical logic for granted. The books develops a system of contradictorial gradualistic logic.
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  46. Lorenzo Peña & Fernando Martínez Llorca (1991). VI Encuentro de la Sociedad Castellano-Leonesa de Filosofía (Salamanca, 8-11 de Noviernbre de 1990). Theoria 6 (1):325-328.
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  47. Lorenzo Peña & Fernando Martínez Llorca (1991). VI Encuentro de la Sociedad Castellano-Leonesa de Filosofía (Salamanca, 8-11 de noviernbre de 1990). Theoria: Revista de Teoría, Historia y Fundamentos de la Ciencia 6 (1/2):325-328.
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  48. Lorenzo Peña (1990). Enlightened Empiricism. Theoria 5 (1-2):300-302.
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  49. Lorenzo Peña (1990). Enlightened Empiricism: An Examination of W. V. Quine's Theory of Knowledge. Theoria 5 (1):300-302.
     
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