•  21
    Another remark on connexivity and set theory
    Logic Journal of the IGPL 33 (5). 2025.
    We show that Wiredu’s result in [26] is not the doom for connexive set theories, not even for those based in logics similar to CC1, one of the original target logics. For this purpose, we present the necessary assumptions for Wiredu’s proof, making some precisions on the connexive requirements. Then we present a non-reflexive variant of CC1 in which Wiredu’s proof can be blocked. Finally, we discuss the prospects of a connexive set theory based on both the non-reflexive and non-transitive varian…Read more
  •  11
    This article investigates the intersection between the medical condition of lovesickness and the social phenomenon of rape. While rape in medieval culture has been studied through the disciplinary lens of gender studies, theology, sociology, and legal theory, the influence of medical epistemology on these reprehensible acts of violence has been overlooked. The advent of the branch of knowledge known as medical humanities allows us to fill in this gap by looking into the clinical treatises that c…Read more
  •  102
    Connexive logic: new old challenges
    Logic Journal of the IGPL 33 (6). 2025.
    After the intense attention the relevance logic community and its friends gave to McCall’s ideas on connexive implication during the late 1960s and nearly
  •  96
    Revisiting Reichenbach’s logic
    Synthese 199 (5): 11821-11845. 2021.
    In this paper we show that, when analyzed with contemporary tools in logic—such as Dunn-style semantics, Reichenbach’s three-valued logic exhibits many interesting features, and even new responses to some of the old objections to it can be attempted. Also, we establish some connections between Reichenbach’s three-valued logic and some contra-classical logics.
  •  76
    Connexive arithmetic formulated relevantly
    Logic Journal of the IGPL 34 (1). 2026.
    Following the strategy in [15] to develop inconsistent models for relevant arithmetics, we formulate a connexive variant of arithmetic by replacing the conditional of RM3 with the Belikov–Loginov conditional. We obtain thus the connexive logic cRM3 which serves as a base logic for arithmetics cRM3$^{i}$, cRM3$^{i\sharp }$, cRM$^{\sharp }$, cRMn$^{i}$, and cRM$^\omega $. We compare these with their counterparts RM3$^{i\sharp }$, RM$^{\sharp }$ and $\mathbf{RM}^\omega$ that extend relevant arithme…Read more
  •  160
    Mortensen logics
    Electronic Proceedings in Theoretical Computer Science 358 189-201. 2022.
    Mortensen introduced a connexive logic commonly known as 'M3V'. M3V is obtained by adding a special conditional to LP. Among its most notable features, besides its being connexive, M3V is negation-inconsistent and it validates the negation of every conditional. But Mortensen has also studied and applied extensively other non-connexive logics, for example, closed set logic, CSL, and a variant of Sette's logic, identified and called 'P2' by Marcos. In this paper, we analyze and compare systematica…Read more
  •  12
    On the Plenitude of Truth. A Defense of Trivialism (review)
    with Claudia Olmedo-García
    Disputatio 5 (35): 93-98. 2013.
  •  133
    On the Possibility of Realist Dialetheism
    SATS 15 (2): 197-217. 2014.
    Realist dialetheism is the view that there are contradictions in reality. One argument against this idea says that it is impossible because it has to make room for the possibility of a trivial reality, which is metaphysically impossible. Another argument against it says that the metaphysical structure of reality is such that it is impossible to have contradictions in it. I argue here that both arguments fail to establish the impossibility of realist dialetheism because they are based on a miscon…Read more
  •  15
    Really full blooded platonism (RFBP) is aimed to achieve a complete picture of the mathematical landscape by accepting inconsistent mathematics. I distinguish various senses of completeness relevant to the debate and argue that the move to inconsistency-tolerance might not be enough to achieve a complete picture of the mathematical landscape in any of those senses, for there is positive reason to endorse a richer Platonism with place for trivial parts in the mathematical landscape. © 2017 Elsevi…Read more
  •  39
    How we learned to stop worrying and love tonk
    Theoria: Revista de Teoría, Historia y Fundamentos de la Ciencia 41 (1): 5-21. 2026.
    According to common wisdom, the connective tonk defined by Prior trivializes any theory that contains it. However, it should not be forgotten that whether an argument holds or not depends to a large extent on the underlying notion of logical consequence. Logical consequence is usually assumed to be Tarskian, that is, reflexive, transitive and monotonic. However, Belnap had already conjectured that tonk might not be so problematic in a non-transitive logic, which Cook finally proved in 2005. In t…Read more
  •  364
    How we learned to stop worrying and love tonk
    Theoria. An International Journal for Theory, History and Foundations of Science (NA): 1-21. 2025.
    Belnap highlighted the role of Transitivity in Prior's triviality proof involvingtonk, but a non-trivial, non-transitive logic withtonkwas never developed until Cook's proposal with four interpretations and a disjunctive consequence relation. We improve on that proposal: we show that only three interpretations suffice and that a non-disjunctive consequence relation is not required.
  •  609
    Empty validity all the way up: an easy road (Proceedings) (edited book, 12th ed.)
    Lomonosov Moscow State University. 2022.
    There is a tension between the definition of empty logic as a logic with no valid arguments and no valid meta-arguments, on the one hand, and the way in which we have usually interpreted the validity of meta-arguments, on the other. Here we argue that one way to eliminate the tension is understanding the “If. . . then. . . ” in a meta-argument, at least in the case of an empty logic, as a transplication (aka the de Finetti conditional) instead of an extensional or material conditional.
  •  24
    I offer here a critical assessment of Beall and Ficara’s most recent take on Hegelian contradictions. By interpreting differently some key passages of Hegel’s work, I favor, unlike them, a no-gaps approach which leads to a different logic.
  •  42
    Sistema Tierra y derecho: el razonamiento jurídico y su argumentación en la segunda revolución copernicana
    with Gabriel Isaac López Porras
    Problema. Anuario de Filosofía y Teoria Del Derecho. forthcoming.
    Científicos del sistema Tierra han demostrado que el planeta es un sistema adaptativo-complejo y que algunos procesos naturales ya no operan en condiciones seguras para preservar la vida. Destaca que poco se ha hecho por explorar las implicaciones en la arena jurídica para responder ante los retos que estas condiciones presuponen para la vida humana y para nuestra supervivencia como especie. Aquí se sostiene que, para mantener el buen funcionamiento planetario, se requiere de una articulación ef…Read more
  •  42
    Medical Responsibility in the Colombian Context: A Review of Negligence from the Legal Framework and Ethical Perspective (review)
    with Carlos Alberto Aponte García, Ana María Lozano Hurtado, Leidy Johana Arcila Montoya, and Maria Del Pilar Garcia Valdes
    Evolutionary Studies in Imaginative Culture 1884-1897. 2024.
    This article explores medical responsibility and negligence from an ethical and legal perspective within the Colombian context. It highlights causes of negligence such as deficiencies in professional training and organizational problems. The article emphasizes "objective imputation as key to determining the criminal responsibility of the physician" (Alvarado D. 2019). The objectives include analyzing the current legal framework in Colombia and assessing the link between medical ethics and legal …Read more
  •  88
    Logic taking care of itself: the case of connexive logic
    Principia: An International Journal of Epistemology 28 (1): 155-165. 2024.
    Logic is an excellent tool for reasoning about most philosophical topics, including logical issues themselves. Discussions about the validity or otherwise of certain principles have been widespread throughout the history of logic. This chapter exemplifies that with the analysis of the debate surrounding connexive logics. In connexive logics, certain principles involving mainly negation and implication hold good, whereas they are not valid in most well-known logics. Despite their intuitiveness, t…Read more
  • A Vueltas Con Amor Y Pedagogía Desde La Filosofía Y La Religión
    El Catoblepas: Revista Crítica Del Presente. 2003.
    Una reinterpretación en clave literario-filosófica de esa obra de Miguel de Unamuno.
  •  25
    Prospects for Triviality
    In Peter Verdée & Holger Andreas (eds.), Logical Studies of Paraconsistent Reasoning in Science and Mathematics, Springer Verlag. pp. 81-89. 2016.
    In this paper I argue, contra Mortensen, that there is a case, namely that of a degenerate topos, an extremely simple mathematical universe in which everything is true, in which no mathematical “catastrophe” is implied by mathematical triviality. I will show that either one of the premises of Dunn’s trivialization result for real number theory –on which Mortensen mounts his case– cannot obtain (from a point of view “external” to the universe) and thus the argument is unsound, or that it obtains …Read more
  • Friedrich Nietzsche: una enseñanza
    Paideia 25 (68): 239-254. 2004.
    La postura nietzscheana sobre la educación sufre un viraje considerable. En todo momento el individualismo es el centro de su pensamiento. Pero el acento de ese individualismo marca dos modos de abordar el problema. Lo la primera época parte de una noción de educación utópica de marcado carácter romántico y vinculado a un proyecto político. El ideal de educación es el heleno. La cultura consiste en el sometimiento a los dictámenes del individuo: el genio. En Schopenhauer como educador, Nietzsche…Read more
  •  96
    Nowadays there is a growing tendency in the philosophy of science to think that some phenomena cannot be exhaustively explained, or even described, by a single theory or a particular approach. Thus, we are occasionally required to use various approaches in order to give account of the phenomenon we are analyzing. And sometimes, we can appreciate this as an invitation to be pluralist in certain respects about our understanding of a particular aspect in science. During the last decade applications…Read more
  • Santo Tomás. Vida y significado
    Philosophica 1 9. 1978.
  • Esbozos de un misticismo en Henri Bergson
    Paideia 24 (64): 185-206. 2003.
  •  1
    La hospitalidad en las obras de Derrida
    Paideia 27 (76): 249-262. 2006.
  • F. J. Vidarte & J. F. Rampérez: Filosofías Del Siglo Xx (review)
    Daimon: Revista Internacional de Filosofía 40 199-200. 2007.
  •  1
    A propósito de un problema sobre pájaros
    El Basilisco 9 75-78. 1980.
  •  34
    Homosexualidad y derecho
    In Javier de la Torre, Madrigal Terrazas & J. Santiago (eds.), Sexo, sexualidad y bioética, Universidad Pontificia Comillas. 2008.