Le tome 2 du Traité des vertus, intitulé Les Vertus et l'Amour, est consacré à la description des " vertus ", depuis celle du commencement jusqu'à celle de la terminaison, en passant par celles de la continuation et de la conservation. Il distingue en outre deux plans tout à fait hétérogènes : celui des vertus de l'intervalle, que l'homme peut " posséder " et " garder ", mais qui, à peine acquises, tournent en mécanique vertueuse, radotage, complaisance pharisienne et hypocrisie (...) ; et les vertus de pointe que l'homme ne possède jamais, qu'il effleure seulement, d'une tangence impondérable, le temps d'une étincelle et d'une " apparition disparaissante ". Vaut-il mieux être au premier sens, un rentier de la vertu et un vertueux gredin, ou, au sens métempirique, le saint ou le héros d'un instant? L'amour résout peut-être, dans une certaine mesure, cette alternative, qui est aussi celle du bonheur et de la joie. (shrink)
In 1995 N. C. A. da Costa and F. Doria proposed the modaltype elegant axiomatization of Jaśkowski’s discussive logic D2. Yet his ownproblem which was formulated in 1975 in a following way: Is it possible toformulate natural and simple axiomatization for D2, employing classical disjunction and conjunction along with discussive implication and conjunctionas the only primitive connectives? — still seems left open. The matter of factis there are some axiomatizations of D2 proposed, e.g., by T. Furmanowski, J. Kotas and N. (...) C. A. da Costa , G. Achtelik, L. Dubikajtus,E. Dudek and J. Konior , satisfying da Costa’s conditions, but they arerather looking very complicated and unnatural. An attempt is made to solveda Costa’s problem. The new axiomatization of D2 is proposed essentiallybased on da Costa’s-Doria axiomatization from 1995. (shrink)
"L'Aventure, l'Ennui et le Sérieux sont trois manières dissemblables de considérer le temps. Ce qui est vécu, et passionnément espéré dans l'aventure, c'est le surgissement de l'avenir. L'ennui, par contre, est plutôt vécu au présent : dans cette maladie l'avenir déprécie rétroactivement l'heure présente, alors qu'il devrait l'éclairer de sa lumière. Quant au sérieux, il est une certaine façon raisonnable et générale non pas de vivre le temps, mais de l'envisager dans son ensemble, de prendre en considération la plus longue (...) durée possible. C'est assez dire que si l'aventure se place surtout au point de vue de l'instant, l'ennui et le sérieux considèrent le devenir surtout comme intervalle : c'est le commencement qui est aventureux, mais c'est la continuation qui est, selon les cas, sérieuse ou ennuyeuse." Publié en 1963, L'Aventure, l'Ennui, le Sérieux est un jalon majeur de la pensée de Vladimir Jankélévitch. Cet ouvrage constitue une première synthèse de sa pensée, où l'on peut distinguer deux critères essentiels qui fondent l'unité de son oeuvre : la dignité philosophique donnée à des objets jugés mineurs, et la volonté radicale de mettre en lumière la dimension temporelle de l'action. (shrink)
Categorical-theoretic semantics for the relevance logic is proposed which is based on the construction of the topos of functors from a relevant algebra (considered as a preorder category endowed with the special endofunctors) in the category of sets Set. The completeness of the relevant system R of entailment is proved in respect to the semantic considered.
The paper analyses A.F. Losev''s argument forthe identity of dialectical and mythicalthinking which forms the key part of his theoryof absolute mythology. Losev claims thatdialectical thinking is limited byphenomenological intuition. He fails torecognise, however, that this intuition itselfis a product of thinking. The same is true ofLosev''s concept of `life'' that is designed tolimit intellectual reflection. The mystery ofthe Absolute is, contrary to Losev''s claim, nota threshold that dialectical thinking cannotcross, but it is, in fact, realised only bysuch thinking. This (...) has a bearing on theChristian Neoplatonist doctrine of energisticsymbolism, which also plays a crucial part inLosev''s philosophy of myth. Under the pressureof the Neoplatonist tradition Losev violatesthe demands of dialectical thinking in favourof myth''s essential mysticism. And yet, becauseof the dialectical relation between rationalismand mysticism, Losev''s attempt was not afailure, but a valuable contribution to thetask of illuminating this relation. (shrink)
Qu'est-ce que la musique? Selon Jankélévitch, il y a dans la musique une double complication, génératrice de problèmes métaphysiques et de problèmes moraux. Car la musique est à la fois expressive et inexpressive, sérieuse et frivole, profonde et superficielle ; elle a un sens et n'en a pas. Il y a une ironique disproportion entre la puissance incantatoire de la musique et l'inévidence foncière du beau musical.
In [12] it was shown that the factor semantics based on the notion ofT-F-sequences is a correct model of the ukasiewicz's infinite-valued logics. But we could not consider some important aspects of the structure of this model because of the short size of paper. In this paper we give a more complete study of this problem: A new proof of the completeness of the factor semantic for ukasiewicz's logic using Wajsberg algebras [3] (and not MV-algebras in [1]) and Symmetrical Heyting (...) monoids [7] is proposed. Some consequences of such an approach are investigated. (shrink)
In some systems of Legniewskian Ontology were introduced as a toolkit for Husserl's and Meinong's theory of objects. Here such consi- deration is extended to Brentano-Husserl's theory of time. So-called antidiodo- rean logics are used as the foundations of the approach undertaken.
. How, why and what for we should combine logics is perfectly well explained in a number of works concerning this issue. But the interesting question seems to be the nature and the structure of the general universe of possible combinations of logical systems. Adopting the point of view of universal logic in the paper the categorical constructions are introduced which along with the coproducts underlying the fibring of logics describe the inner structure of the category of logical systems. It (...) is shown that categorically the universe of universal logic turns out to be a topos and a paraconsistent complement topos. (shrink)
A number of recent studies have documented rapid changes in behavioural sensory acuity induced by aversive learning in the olfactory and auditory modalities. The effect of aversive learning on the discrimination of low-level features in the visual system of humans remains unclear. Here, we used a psychophysical staircase procedure to estimate discrimination thresholds for oriented grating stimuli, before and after differential aversive learning. We discovered that when a target grating orientation was conditioned with an aversive loud noise, it subsequently led (...) to an improvement of discrimination acuity in nearly all subjects. However, no such change was observed in a control group conditioned to an orientation shifted by ±90° from the target. Our findings cannot be explained by contextual learning or sensitisation factors. The results converge with those reported in the olfactory modality and provide further evidence that early sensory systems can be rapidly modified by recently experienced reinforcement histories. (shrink)
