We introduce translations between display calculus proofs and labeled calculus proofs in the context of tense logics. First, we show that every derivation in the display calculus for the minimal tense logic Kt extended with general path axioms can be effectively transformed into a derivation in the corresponding labeled calculus. Concerning the converse translation, we show that for Kt extended with path axioms, every derivation in the corresponding labeled calculus can be put into a special form that is translatable to (...) a derivation in the associated display calculus. A key insight in this converse translation is a canonical representation of display sequents as labeled polytrees. Labeled polytrees, which represent equivalence classes of display sequents modulo display postulates, also shed light on related correspondence results for tense logics. (shrink)

Pablo Gilabert and Holly Lawford-Smith have, both in collaboration and individually, provided a compelling account of feasibility, which states that feasibility is both ‘binary’ and ‘scalar’, and both ‘synchronic’ and ‘diachronic’. This two-dimensional analysis, however, has been the subject of four major criticisms: it has been argued that it rests upon a false distinction between ‘hard’ and ‘soft’ constraints, that it ignores the importance of intentional action, and that diachronic feasibility is incoherent and insensitive to the existence of epistemic limitations. (...) In this paper, I will argue that such objections do not undermine the persuasiveness of Gilabert and Lawford-Smith’s analysis. Nevertheless, I will contend that the latter is susceptible to two other challenges. First, it mistakenly appeals to morality, and, second, it lacks an analysis of ability. I will maintain, however, that such criticisms can be addressed and that a revised version of the account should be adopted. (shrink)

We introduce an effective translation from proofs in the display calculus to proofs in the labelled calculus in the context of tense logics. We identify the labelled calculus proofs in the image of this translation as those built from labelled sequents whose underlying directed graph possesses certain properties. For the basic normal tense logic Kt, the image is shown to be the set of all proofs in the labelled calculus G3Kt.

Many political theorists believe that a state cannot be neutral when it comes to languages. Legislatures cannot avoid picking a language in which to conduct their business and teachers have to teach their pupils in a language. However, against that, some political liberals argue that liberal neutrality is consistent with the state endorsement of particular languages. Claims to the contrary, they say, are based on a misguided understanding of what neutrality is. I will argue that this line of argument fails, (...) for two reasons. First, the primary challenge to which political liberals should respond is not that of reconciling the promotion of languages with liberal neutrality but, rather, that of reconciling liberal neutrality with the fact that reasonable people disagree about the existence and nature of languages. Second, even if everyone accepted the existence of languages along essentialist lines, one should still doubt the possibility of state neutrality with respect to them, regardless of the conception of neutrality one prefers. The reason why is that human beings cannot care about or value languages so when a state promotes a particular language, it is not supporting the preferences of its citizens but, rather, acting on perfectionist or simply irrational grounds. (shrink)

Plus qu’un régime ou un mode de vie, le véganisme est un mouvement social et politique visant à libérer les animaux du joug humain. S’opposant au carnisme, les véganes renoncent autant que possible à utiliser des produits ou des services issus de leur exploitation. Leurs arguments rencontrent aujourd’hui un écho de plus en plus favorable parmi les consommateurs, alors même que les animaux, sur terre et dans la mer, n’ont jamais été tués dans de si grandes proportions. Cet essai est (...) l’occasion pour ses auteurs de montrer que la société que les véganes appellent de leurs vœux (et préfigurent par leurs pratiques quotidiennes) repose sur une conception élargie de la justice. Une justice qui devrait embrasser l’ensemble des êtres doués de sensibilité. (shrink)

My essay will take as its point of departure the paragraph from Gershom Scholem’s “Reflections on Jewish Theology,” in which he depicts the modern religious experience as the one of the "void of God" or as "pious atheism". I will first argue that the "void of God" cannot be reduced to atheistic non-belief in the presence of God. Then, I will demonstrate the further development of the Scholemian notion of the ‘pious atheism’ in Derrida, especially in his Lurianic treatment of (...) Angelus Silesius, whose modern mysticism emerges in Derrida’s reading as the ‘almost-atheism’. The interesting feature of this development is that, while for Scholem, the ‘void of God’ is a predominantly negative experience, for Derrida, it becomes an affirmative model of modern – not just Jewish, but more generally, Abrahamic – religiosity which, on the one hand, touches upon atheistic non-belief in the divine presence here and now, yet, on the other, still insists on commemorating the ‘withdrawn God’ through his ‘traces.’ What, therefore, for Scholem, constitutes the ultimate cry of despair, best embodied in Kafka’s work – for Derrida, reveals the more positive face of the modern predicament in which God has absented himself in order to make room for the creaturely reality. And while Scholem envisages redemption as the full restoration of the divine presence – Derrida redefines redemption as the ‘pious’ work of deconstruction to be undertaken in the ‘almost-atheistic’ condition of irreversible separation between God and the world. (shrink)

It is shown that Gqp↑, the quantified propositional Gödel logic based on the truth-value set V↑ = {1 - 1/n : n≥1}∪{1}, is decidable. This result is obtained by reduction to Büchi's theory S1S. An alternative proof based on elimination of quantifiers is also given, which yields both an axiomatization and a characterization of Gqp↑ as the intersection of all finite-valued quantified propositional Gödel logics.

The purpose of the study was to explore the role of emotions, promotion-prevention orientation and feedback on cognitive engagement. In the experiment participants had the possibility to engage in a categorization task thrice. After the first categorization all participants were informed that around 75% of their answers were correct. After the second categorization, depending on the experimental condition, participants received feedback either about success or failure. Involvement in the third categorization was depended on participants’ decision whether to take part in (...) it or not. Each time, before and after categorization, the emotional state was assessed. Results showed that promotion orientation predicted experiencing curiosity before the task, which in turn led to a higher cognitive engagement in the first categorization. Promotion and prevention orientation moderated the type of emotional response to positive feedback. Promotion orientation also predicted cognitive engagement after the feedback of success was provided. Generally results confirmed the positive effect of positive emotions as well as promotion orientation on cognitive engagement. (shrink)

Obóz Kultury 2.0 Mirosław Filiciak, Alek Tarkowski, Agata Jałosińska, Andrzej Klimczuk, Maciej Rynarzewski, Jacek Seweryn, Stunża M., D. Grzegorz, Marcin Wilkowski & Anna Orlik .