•  199
    Towards a Logic of Modalities for Quantum Mechanics
    with Olimpia Lombardi, Matías Pasqualini, and José Alejandro Fernández Cuesta
    Logique Et Analyse. forthcoming.
    Modal Interpretations of quantum mechanics distinguish between the realm of possibility, where the dynamical state determines what may be the case, and the realm of actuality, where the value state represents what actually is the case. In particular, the Modal-Hamiltonian Interpretation proposes an ontology in which there are no individual objects: quantum systems are characterized as non-individual bundles of properties. The aim of the present paper is to propose some first steps towards the de…Read more
  •  156
    Se presenta un marco matemático general, basado en particiones numerables de los números naturales [1], que permite brindar una semántica a lenguajes proposicionales. El mismo tiene la particularidad de permitir que tanto las valuaciones como los conjuntos de interpretación para los conectivos discriminen complejidad de las fórmulas. Esto permite que se puedan emplear distintos criterios de adecuación para valuar fórmulas asociadas con un mismo conectivos, pero que difieran en su complejidad. El…Read more
  •  139
    Lógica cuántica, Nmatrices y adecuación, I
    Teorema: International Journal of Philosophy 41 (3). 2022.
    In this paper we discuss the notions of adequacy and truth functionality in quantum logic from the point of view of a non-deterministic semantics. We give a characterization of the degree of non-functionality which is compatible with the propositional structure of quantum theory, showing that having truth-functional connectives, together with some assumptions regarding the relation of logical consequence, commits us to the adequacy of the interpretation sets of these connectives. An advantage o…Read more
  •  22
    El Teorema de Kochen-Specker y las Semánticas no deterministas
    Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. 2019.
    Esta tesis de grado en física presenta la articulación de dos formalismos hasta el momento disconexos: las semánticas no detreministas de Nmatrices y los formalismos de espacios de Hilbert para la mecánica cuántica. Se presenta una caracterización novedosa de los estados cuánticos como valuaciones de cierta Nmatriz para el retículo de proyectores cuánticos.
  •  14
    Mereology deals with the study of the relations between wholes and parts. In this work we will discuss different developments and open problems related to the formulation of a quantum mereology. In particular, we will discuss different advances in the development of formal systems aimed to describe the whole-parts relationship in the context of quantum theory.
  •  278
    Aspectos lógicos y algebraicos de la Mecánica cuántica
    Facultad de Filosofía y Letras, Universidad de Buenos Aires. 2026.
    El análisis de los vínculos que pueden ser establecidos entre la lógica cuántica, las semánticas no deterministas de Nmatrices y las teorías de cuasiconjuntos es el núcleo central de este trabajo. La necesidad de tal análisis ha surgido de forma natural luego de que la relación entre Nmatrices y lógica cuántica quedó explicitada en un trabajo previo: los estados cuánticos, entendidos como medida de probabilidad, pueden ser interpretados como valuaciones de una cierta Nmatriz para el retículo cuá…Read more
  •  319
    As a quantum system transitions to classical behavior, within the framework of the classical limit, the propositions associated with the system shift from forming a non-distributive lattice to behaving Booleanly. This transformation of its associated logic can be analyzed both algebraically and semantically. Based on the latter and using the matrix formalism, this article presents some arguments that offer a new perspective on what happens in the classical limit of quantum mechanics. While prese…Read more
  •  48
    Quasi-set theories are forms of quantum set theories that take into account the possibility of conceiving the basic entities as devoid of standard identity conditions. The main purpose of this article is to compare the two versions of the theory: one with atoms and the other without them, thereby contributing to a clearer understanding of the role played by the different versions.
  •  378
    Quasi-set theories are forms of quantum set theories that take into account the possibility of conceiving the basic entities as devoid of standard identity conditions. The main purpose of this article is to compare the two versions of the theory: one with atoms and the other without them, thereby contributing to a clearer understanding of the role played by the different versions.
  •  389
    Beyond Quantum Individuals: Quasi-Sets and the Philosophy of Quantum Logics
    International Journal of Theoretical Physics 65 (107). 2026.
    Standard quantum logics are typically defined over the orthomodular lattice associated with Hilbert space, yet there is no consensus on how this structure should be interpreted logically or ontologically. This paper offers a unified perspective on these issues by combining an epistemological three-layer model for scientific theories with quantum set theory. We argue that quasi-set theory is best understood not as an alternative semantics for quantum logics, but as an ontological framework operat…Read more
  •  49
    One of the main ontological challenges posed by quantum mechanics is the problem of the indistinguishability of so-called “identical” particles, that is, particles that share the same state-independent properties. In the framework of this philosophical problem, a quasi-set theory was formulated to provide a proper metalanguage to deal with quantum indistinguishability; this theory included certain Urelemente called m-atoms, representing essentially indistinguishable objects. In turn, over the la…Read more
  •  907
    Towards a logic of modalities for quantum mechanics
    with Olimpia Lombardi, Matías Pasqualini, and José Alejandro Fernández Cuesta
    Logique Et Analyse. forthcoming.
    Modal Interpretations of quantum mechanics distinguish between the realm of possibility, where the dynamical state determines what may be the case, and the realm of actuality, where the value state represents what actually is the case. In particular, the Modal-Hamiltonian Interpretation proposes an ontology in which there are no individual objects: quantum systems are characterized as non-individual bundles of properties. The aim of the present paper is to propose some rst steps towards the deve…Read more
  •  373
    ¿Qué pueden aportar los casi-conjuntos a la lógica?
    Análisis Filosófico. forthcoming.
    We analyze the contributions that quasi-set theories can make to the interests of logic. Different quasi-set theories have made valuable contributions to the foundations of mathematics and quantum physics; however, it is not clear how much such formalisms can benefit logic. If so, could they have repercussions at both the syntactic and semantic levels? What precautions should we take? What implications would their application have at different levels and metalevels of logical language? Motivated…Read more
  •  448
    Nmatrices cuánticas, cuasiconjuntos y el teorema de Kochen-Specker
    Teorema: International Journal of Philosophy 44 (2): 1-28. 2025.
    We analyze two fundamental premises of the Kochen-Specker theorem: a) the functionality condition FUNC, which expresses the fact that not all observables are independent, nor are the values assigned to them, and b) the issue of the identity of projectors in different measurement contexts. We show that the non-deterministic semantics of Nmatrices and the theory of qsets Q− can complement each other by providing an appropriate semantics for the lattice of quantum projectors. Considering valuations…Read more
  •  159
    "Animalidad, otredad e inmortalidad en ‘‘El inmortal’’
    with Federico Biafore
    Logos Revista de Lingüística Filosofía y Literatura 35 (1). 2025.
    En el presente trabajo, analizamos el cuento El Inmortal de Borges prestándole principal atención a las situaciones donde se entrelazan, o se tratan sin diferenciar demasiado, cuestiones vinculadas con la animalidad y la divinidad. Sostenemos que esta especie de confusión o falta de precisión al tratar cuestiones que se alejan tanto de la identidad personal y del Yo, como la inmortalidad, no es un elemento casual ni sin fundamento, sino que puede ser analizado filosóficamente adentrándonos en la…Read more
  •  899
    One of the main ontological challenges posed by quantum mechanics is the problem of the indistinguishability of so-called “identical” particles, that is, particles that share the same state-independent properties. In the framework of this philosophical problem, a quasi-set theory was formulated to provide a proper metalanguage to deal with quantum indistinguishability; this theory included certain Urelemente called m-atoms, representing essentially indistinguishable objects. In turn, over the …Read more
  •  637
    Relating quasi-sets and rough sets: from quantum entities to AI
    International Journal of Theoretical Physics 64 (289). 2025.
    At present, there are at least two set theories motivated by quantum ontology: Décio Krause’s quasi-set theory (Q) and Maria Dalla Chiara and Giuliano Toraldo di Francia’s quasi-set theory (QST). Recent work [Jorge-Holik-Krause, 2023] has established certain links between QST and Pawlak’s rough set theory (RST), showing that both are strong candidates for providing a non-deterministic semantics of N matrices that generalizes those based on ZF. In this work, we show that the new atomless quas…Read more
  •  681
    We discuss a reconstruction of standard quantum mechanics assuming indistinguishability right from the start, by appealing to quasi-set theory. After recalling the fundamental aspects of the construction and introducing some improvements in the original formulation, we extract some conclusions for the interpretation of quantum theory.
  •  502
    El Teorema de Kochen-Specker y las Semánticas no deterministas
    Departamento de Física, Universidad de Buenos Aires. 2019.
    Desde los trabajos de von Neumann y Birkhoff hasta la actualidad, el estudio de distintas estructuras algebraicas asociadas al formalismo cuántico ha dado lugar a interesantes desarrollos. A modo de ejemplo, el teorema de Kochen-Specker ha tenido una fuerte repercusión en los fundamentos e interpretación de la teoría cuántica. En este trabajo, prestaremos especial atención al abordaje lógico-algebraico iniciado por von Neumann y Birkhoff (aunque también discutiremos otros formalismos, tales como…Read more
  •  546
    Animalidad, otredad e inmortalidad en "El inmortal"
    Logos: Revista de Lingüística, Filosofía y Literatura 35 (1). 2025.
    En el presente trabajo, analizamos el cuento El Inmortal de Borges prestándole principal atención a las situaciones donde se entrelazan, o se tratan sin diferenciar demasiado, cuestiones vinculadas con la animalidad y la divinidad. Sostenemos que esta especie de confusión o falta de precisión al tratar cuestiones que se alejan tanto de la identidad personal y del Yo, como la inmortalidad, no es un elemento casual ni sin fundamento, sino que puede ser analizado filosóficamente adentrándonos la ot…Read more
  •  560
    The Kochen-Specker theorem is one of the fundamental no-go theorems in quantum theory. It has far-reaching consequences for all attempts trying to give an interpretation of the quantum formalism. In this work, we examine the hypotheses that, at the ontological level, lead to the Kochen-Specker contradiction. We emphasize the role of the assumptions about identity and distinguishability of quantum objects in the argument.
  •  673
    COMPLEXITY VALUATIONS: A GENERAL SEMANTIC FRAMEWORK FOR PROPOSITIONAL LANGUAGES
    with Hernán Luis Vázquez and Federico Holik
    Actas Del Xvii Congreso Dr. Antonio Monteiro. forthcoming.
    A general mathematical framework, based on countable partitions of Natural Numbers [1], is presented, that allows to provide a Semantics to propositional languages. It has the particularity of allowing both the valuations and the interpretation Sets for the connectives to discriminate complexity of the formulas. This allows different adequacy criteria to be used to assess formulas associated with the same connective, but that differ in their complexity. The presented method can be adapted potent…Read more
  •  1191
    Teoría de la Mente en animales: fundamentación y alternativas
    Instituto de Filosofía, Universidad Austral.. 2024.
    Varios enfoques teóricos y disciplinas se han comprometido con el problema de nuestra relación cognitiva con los animales (e incluso entre ellos). De qué forma lograr el mejor acercamiento es aún un tema controversial. En este trabajo, analizamos algunas de las posibilidades presentadas en los últimos años. Cuando el acceso cognitivo al psiquismo animal se realiza por vía naturalista, abierta a la psicología, una de las alternativas brindadas es la llamada Teoría de la Mente (ToM). La Teoría de …Read more
  •  739
    We review some results in the theory of non-relativistic quantum unstable systems. We account for the most important definitions of quantum resonances that we identify with unstable quantum systems. Then, we recall the properties and construction of Gamow states as vectors in some extensions of Hilbert spaces, called Rigged Hilbert Spaces. Gamow states account for the purely exponential decaying part of a resonance; the experimental exponential decay for long periods of time physically character…Read more
  •  612
    An Algebraic Model for Quantum Unstable States
    with Sebastian Fortin, Manuel Gadella, Federico Holik, and Marcelo Losada
    Mathematics 10 (23). 2022.
    In this review, we present a rigorous construction of an algebraic method for quantum unstable states, also called Gamow states. A traditional picture associates these states to vectors states called Gamow vectors. However, this has some difficulties. In particular, there is no consistent definition of mean values of observables on Gamow vectors. In this work, we present Gamow states as functionals on algebras in a consistent way. We show that Gamow states are not pure states, in spite of their …Read more
  •  494
    Retornando al Hotel de Hilbert
    with Hernán Luis Vázquez
    Revista de Educación Matemática 36 (2): 67-87. 2021.
    Some partitions of Natural Number set are built through recursive processesgenerating in this manner countable examples of countable and disjoint sets whose unionis a set also countable. This process is constructive, so the Axiom of choice is not used.We provide a PC program that generates one of these special partitions and shows howto generate infinite of them. This line of reasoning can have multiple applications in Settheory and Model theory. We proved that the number of ways to make these p…Read more
  •  604
    In this work, we discuss the failure of the principle of truth functionality in the quantum formalism. By exploiting this failure, we import the formalism of N-matrix theory and non-deterministic semantics to the foundations of quantum mechanics. This is done by describing quantum states as particular valuations associated with infinite non-deterministic truth tables. This allows us to introduce a natural interpretation of quantum states in terms of a non-deterministic semantics. We also provide…Read more
  •  478
    Lógica cuántica, Nmatrices y adecuación, II
    Teorema: International Journal of Philosophy 42 (1): 149-169. 2023.
    By elaborating on the results presented in Lógica cuántica, Nmatrices y adecuación I, here we discuss the notions of adequacy and truth functionality in quantum logic from the point of view of a non-deterministic semantics based on Nmatrices. We present a proof of the impossibility of providing a functional semantics for the quantum lattice. An advantage of our proof is that it is independent of the number of truth values involved, generalizing previous works. Due to the impossibility of def…Read more
  •  782
    In this paper, we introduce a quasi-set theory without atoms. The quasi-sets (qsets) can have as elements completely indiscernible things which do not turn out to be the very same thing as it would be implied if its underlying logic was classical logic. A quasi-set can have a cardinal, called its quasi-cardinal, but this is made so that, at least for the finite case, the quasi-cardinal is not an ordinal, and hence the indistinguishable elements of a quasi-set cannot be ordered. In the last secti…Read more