It was shown recently that epimorphisms need not be surjective in a variety K of Heyting algebras, but only one counter-example was exhibited in the literature until now. Here, a continuum of such examples is identified, viz. the variety generated by the Rieger-Nishimura lattice, and all of its (locally finite) subvarieties that contain the original counter-example K . It is known that, whenever a variety of Heyting algebras has finite depth, then it has surjective epimorphisms. In contrast, we show that (...) for every integer $n \geq 2$ , the variety of all Heyting algebras of width at most n has a non-surjective epimorphism. Within the so-called Kuznetsov-Gerčiu variety (i.e., the variety generated by finite linear sums of one-generated Heyting algebras), we describe exactly the subvarieties that have surjective epimorphisms. This yields new positive examples, and an alternative proof of epimorphism surjectivity for all varieties of Gödel algebras. The results settle natural questions about Beth-style definability for a range of intermediate logics. (shrink)

During the 20 years since the Rwandan genocide a number of younger Rwandan theologians have reflected on the terrible events that ravaged their country in 1994. They have presented PhD theses at different universities in Africa and Europe. Four of these deal explicitly with the 1994 genocide. The basic main question of this review article is how these theologians are looking to reconstruct the broken Rwandan society. This analysis reveals that, while exploring a variety of subjects, each of these theologians (...) is looking for a way in which reconciliation may be achieved in Rwandan society, which has been torn apart by the consequences of the genocide. This article indicates the main issues put forward by these scholars and highlights what they have in common and to what extent they differ. (shrink)

Constructive Neutral Evolution theory provides selectively neutral explanations of the origin and maintenance of biological complexity. This essay provides an analysis of CNE as an explanatory strategy defined by a tripartite set of conditions, and shows how this applies to cases of the evolution of complexity at higher-levels of the biological hierarchy. CNE was initially deployed to help explain a variety of complex molecular structures and processes, including spliceosomal splicing, trypansomal pan-editing, scrambled genes in ciliates, duplicate gene retention and fungal (...) ATP synthetase structure. CNE has also been generalized to apply to phenomena at the cellular level, including protein-protein interaction network modularity, obligate microbial symbioses, eukaryogenesis and microbial unculturability. This essay further extends CNE to cases of complexity at levels of organization higher than the molecular and cellular. These are multicellular phenotypic complexity, multicellular ecological complexity and, some cases of cultural complexity. (shrink)

Volume 25, Issue 5, August 2020, Page 499-501.

Professor Benhabib seeks to rely upon discourse theory to ground a `right to membership' — a right of immigrants to seek and be granted naturalization. The effort is unpersuasive because discourse theory cannot provide an answer to the fundamental question of who should participate in the conversation that would establish a right to membership, nor is it clear that persons freely and equally discussing membership rules would reach the normative conclusions that Benhabib defends. Protection of the `rights of others' might (...) be better secured by arguing from human rights principles that guarantee rights to all residents — citizens and immigrants — than by arguing for a right to membership. (shrink)

This paper is an attempt to elucidate the senses in which this place-name is used in Homer; to assign meanings to the Homeric terms Achaean, Iason and Pelasgic Arge, to ‘Argive’ as a synonym for Greek, and to establish the nature of the Argos over which Agamemnon ruled. I take the Homeric poems as the unity which they profess to be, and which they must be for historical enquiry. Whatever liberties Homer took with his materials it is plain he was (...) careful to respect events. The effort to distinguish between old and new in the Iliad and Odyssey has caused needless and fruitless encumbrance to the official historians, such as Busolt; the Unitarian position has given us the remarkable results of Professor Myres' . The consistency of Mr. Myres' account, and I venture to hope of mine, allows a fresh inference back to the homogeneity of the poems which are their source. (shrink)

In this paper I will sketch an Umwelt ethics, i.e., an ethics that rests heavily on fundamental features of Jakob von Uexküll’s Umwelt theory. In the course of an interpretation of the Umwelt theory, a number of concepts are introduced. These include ontological niche, common-Umwelt, total Umwelt and bio-ontological monad. I then present an Uexküllian reading of the deep ecology platform. It is suggested that loss of biodiversity, considered as a physio-phenomenal entity, is the most crucial aspect of the ecological (...) crisis, which can be understood as an ontological crisis. (shrink)

In this paper we aim to shed light on the dynamics of regional identity construction and deconstruction. We will argue that four forms of identity can be identified that are linked through various processes of change. To that end, we will theoretically conceptualise 'identity' by discussing historical and current scholarly debates on identity in a variety of scientific disciplines. Then, we will argue that the mutual contradiction of the current theories is a paradox if seen from the angle of regional (...) identity construction and deconstruction. Building upon elements from the various theoretical approaches, we propose a heuristic model describing the dynamics of identity construction and deconstruction, which will be explored by means of the example of the Green Heart region, a spatial planning concept in western Holland. (shrink)

Postmodern understandings of the god concept, based upon sociological and anthropological insights, support the ontological reality of the god concept. AII such god constructs can be understood as real but human products which come out of a situated Drama of the Holy. The reality quotient of any god concept can be seen as a function of solidarity activities within a society. Social justice concerns are, thus, the best indicators of that reality quotient while divisive, exploitative and oppressive practices in the (...) world tend to desanctify both society and nature thus justify Death of God analyses. Two interrelated solidarity activities are discussed for their efficacy in sanctification of nature and society: 1) situated Dramas of the Holy and, 2) social policies in the political economy. A variety of grand narratives are mentioned, each with differing foundational concepts, with which to institute social justice as we move into the 21st century. (shrink)

Slavdom in general, and Ukrainians in particular, their researchers refer to the "religious tribe". This means that religiousness has become an inalienable feature of Ukrainian spirituality, which, in its turn, is one of the main sources of Ukrainian religiosity. Therefore, in order to study the traditional religiosity of Ukrainians and to study the modern mass religious consciousness of the Ukrainian people, it is necessary to take into account the features of Ukrainian ethnopsychology.

Name der Zeitschrift: Semiotica Jahrgang: 2015 Heft: 203 Seiten: 53-78.

En sus Escolios, Nicolás Gómez Dávila hace manifiesta la relación existente entre las antiguas nociones gnósticas y las pretensiones ilustradas de la modernidad. Al determinar los fundamentos del gnosticismo en un conocimiento que se eleva sobre la fe, ubica rasgos análogos en el pensamiento moderno..