A system of relational syllogistic incorporating full Boolean reasoning

We present a system of relational syllogistic, based on classical propositional logic, having primitives of the following form: Some A are R-related to some B; Some A are R-related to all B; All A are R-related to some B; All A are R-related to all B. Such primitives formalize sentences from natural language like `All students read some textbooks'. Here A and B denote arbitrary sets (of objects), and R denotes an arbitrary binary relation between objects. The language of the logic contains only variables denoting sets, determining the class of set terms, and variables denoting binary relations between objects, determining the class of relational terms. Both classes of terms are closed under the standard Boolean operations. The set of relational terms is also closed under taking the converse of a relation. The results of the paper are the completeness theorem with respect to the intended semantics and the computational complexity of the satisfiability problem.Comment: Available at http://link.springer.com/article/10.1007/s10849-012-9165-

Automating Agential Reasoning: Proof-Calculi and Syntactic Decidability for STIT Logics

This work provides proof-search algorithms and automated counter-model extraction for a class of STIT logics. With this, we answer an open problem concerning syntactic decision procedures and cut-free calculi for STIT logics. A new class of cut-free complete labelled sequent calculi G3LdmL^m_n, for multi-agent STIT with at most n-many choices, is introduced. We refine the calculi G3LdmL^m_n through the use of propagation rules and demonstrate the admissibility of their structural rules, resulting in auxiliary calculi Ldm^m_nL. In the single-agent case, we show that the refined calculi Ldm^m_nL derive theorems within a restricted class of (forestlike) sequents, allowing us to provide proof-search algorithms that decide single-agent STIT logics. We prove that the proof-search algorithms are correct and terminate

Automated Synthesis of Tableau Calculi

This paper presents a method for synthesising sound and complete tableau calculi. Given a specification of the formal semantics of a logic, the method generates a set of tableau inference rules that can then be used to reason within the logic. The method guarantees that the generated rules form a calculus which is sound and constructively complete. If the logic can be shown to admit finite filtration with respect to a well-defined first-order semantics then adding a general blocking mechanism provides a terminating tableau calculus. The process of generating tableau rules can be completely automated and produces, together with the blocking mechanism, an automated procedure for generating tableau decision procedures. For illustration we show the workability of the approach for a description logic with transitive roles and propositional intuitionistic logic.Comment: 32 page

Using instruments in the study of animate beings:Della Porta’s and Bacon’s experiments with plants

In this paper, I explain Francis Bacon's use of plants as philosophical instruments in the context of his Historia vitae et mortis. My main claim is that Bacon experimented with plants in order to obtain knowledge about the hidden processes of nature, knowledge that could be transferred to the human case and used for the prolongation of life. Bacon's experiments were based on Giambattista della Porta's reports from the Magia naturalis, but I show how a different metaphysics and research method made Bacon systematically rework, reconceptualise, and put to divergent uses the results of the same experimental reports

Detección y diferenciación molecular en simultáneo de especies de eimeria spp. que infectan aves comerciales

La producción de carne aviar enfrenta en la actualidad nuevos desafíos por lo cual los productores requieren de mejores técnicas diagnósticas para adoptar a tiempo medidas de control. La coccidiosis aviar es una parasitosis intestinal, altamente contagiosa que causa pérdidas económicas significativas en los sistemas de producción intensiva. La coccidiosis subclínica, de difícil diagnóstico, causa el 80% de las pérdidas económicas ya que influye directamente en la ganancia de peso de los animales de producción. La coccidiosis es causada por parásitos del género Eimeria y se transmiten vía fecal-oral a través del ooquiste esporulado. Hasta el momento se conocen siete especies que infectan a las aves.Instituto de PatobiologíaFil: Tomazic, Mariela Luján. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Delgado, Fernando Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Balbiani, Facundo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Jauregui, Gloria R. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Schapiro, Javier Hernan. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Universidad del Salvador. Escuela de Veterinaria; ArgentinaFil: Palacios, L. Universidad Nacional de Luján (UNLU); ArgentinaFil: De Franceschi, M. Universidad Nacional de Luján (UNLU); ArgentinaFil: Rodriguez, Anabel Elisa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentin

Reproducción experimental de la infección de Eimeria spp. en pollos parrilleros a partir de un aislamiento de campo

La coccidiosis es la afección parasitaria de mayor trascendencia económica en explotaciones avícolas. La producen protozoarios del género Eimeria que afectan el intestino delgado y los ciegos de las aves. Su control se logra mediante la administración continua de coccidiostáticos y coccidicidas suministrados en el alimento o con vacunas. El SENASA en su última resolución (1119/2018) prohibió la comercialización de alimentos para animales con antibióticos -entre otros- debido a la resistencia antimicrobiana que pueden generar. La implementación de un modelo de infección experimental además de evaluar la patogenia de distintos aislamientos, servirá para la evaluación de alternativas de control existentes (compuestos naturales, aditivos, vacunas).Instituto de PatobiologíaFil: Tomazic, Mariela Luján. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Delgado, Fernando Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Balbiani, Facundo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Jauregui, Gloria R. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Chacana, Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; ArgentinaFil: Schapiro, Javier Hernan. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentina. Universidad del Salvador. Escuela de Veterinaria; ArgentinaFil: De Franceschi, M. Universidad Nacional de Luján (UNLU); ArgentinaFil: Palacios, L. Universidad Nacional de Luján (UNLU); ArgentinaFil: Rodriguez, Anabel Elisa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología; Argentin

Logics of knowledge and action: critical analysis and challenges

International audienceWe overview the most prominent logics of knowledge and action that were proposed and studied in the multiagent systems literature. We classify them according to these two dimensions, knowledge and action, and moreover introduce a distinction between individual knowledge and group knowledge, and between a nonstrategic an a strategic interpretation of action operators. For each of the logics in our classification we highlight problematic properties. They indicate weaknesses in the design of these logics and call into question their suitability to represent knowledge and reason about it. This leads to a list of research challenges

DETERMINATION OF TYPES OF INDIVIDUALS IN APHIDS, ROTIFERS AND CLADOCERA 1

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72827/1/j.1469-185X.1929.tb00888.x.pd

A Non-wellfounded, Labelled Proof System for Propositional Dynamic Logic

We define a infinitary labelled sequent calculus for PDL, G3PDL^{\infty}. A finitarily representable cyclic system, G3PDL^{\omega}, is then given. We show that both are sound and complete with respect to standard models of PDL and, further, that G3PDL^{\infty} is cut-free complete. We additionally investigate proof-search strategies in the cyclic system for the fragment of PDL without tests