It is shown that in a linearly ordered MV-algebra A , the implication is unique if and only if the identity function is the unique De Morgan automorphism on A . Modulo categorical equivalence, our uniqueness criterion recalls Ohkuma's rigidness condition for totally ordered abelian groups. We also show that, if A is an Archimedean totally ordered MV-algebra, then each non-trivial De Morgan automorphism of the underlying involutive lattice of A yields a new implication on A , which is not (...) isomorphic to the original implication. (shrink)

It seems that the choice for the subject "Christian Ethics in Ukrainian Culture" was made by everyone: the so-called "traditional Churches" and the authorities. The move, however, leaves much room for thought. First, who will teach this subject in educational institutions? We propose to use the experience not only of the western regions of Ukraine, including Lviv, Ivano-Frankivsk, etc., but also of the Ostroh Academy National University. When on March 24, 2000, the Rivne Regional Council decided to introduce the subject (...) of Christian ethics in Rivne schools, the National University "Ostroh Academy" became one of the basic training centers for teachers of Christian ethics. The creation of a faculty for the training of teachers of Christian ethics caused, accordingly, the recruitment of students. (shrink)

La Ley Desmedida trata de dar cuenta de la desbocada realidad legislativa y de cuanto de conflicto supone imponer un modelo constitucional normativo plagado de contenidos materiales quiz poco respetuosos del sistema de fuentes positivas del Derecho, de la separaci¢n entre el Derecho y la moral, de las garant¡as judiciales y de la seguridad jur¡dica. Pero lo hace con la perspectiva cr¡tico-constructiva de impulsar la mejora del Derecho en el horizonte claro de la rehabilitaci¢n de una teor¡a y una t‚cnica (...) legislativas que reemprendan el camino abandonado por el iuspositivismo formal aunque sin abandonar la evidencia de la positividad y conform ndose a las condiciones y exigencias que caracterizan a la sociedad m£ltiple, compleja y reclamante que campa por la realidad actual. (shrink)

Estrechamente vinculado a su Historia de la Filosofía (Colección Fundamentos, números 21 y 22), esta Iniciación que nos ofrece ahora Felipe Martínez Marzoa refleja una considerable experiencia docente. No se trata, sin embargo, de un libro que se atenga a las normas de los programas oficiales, ni que pretenda exponer "un poco de todo" a costa de esquivar cuanto hay de dificultoso en un desarrollo, incluso elemental, de los temas de la Filosofía. El autor ha seleccionado premeditadamente una serie de (...) cuestiones básicas para una rigurosa lectura de iniciación -el silogismo y la proposición, el universal, la teoría de las ideas, las categorías, la esencia de las verdades matemáticas, la lógica simbólica, etc.- y las pone al alcance del lector que, deseando algo más que la familiarización con fórmulas definitorias, aspira a dar los primeros pasos en un terreno que no podrá recorrer nunca sin esfuerzo personal. (shrink)

Wal-Mart received widespread praise for its response to Hurricane Katrina when it hit the Louisiana coast in August 2005 and low prices at the world’s largest retailer are estimated to save consumers billions of dollars a year. Nonetheless, it was coming under increasing criticism for corebusiness practices, ranging from detrimental effects on communities when Wal-Mart stores are established, to abusive labour practices, to alleged sourcing from sweatshops. This case looks at the benefits and the potentially harmful consequences of the Wal-Mart (...) business model. The focus is on supply chain issues and, more specifically, a lawsuit brought by the International Labor Rights Fund (ILRF) charging that Wal-Mart failed to meet contractual obligations specified in its Standards for Suppliers Agreement. However, the retailer must respond to a range of criticisms that chief executive Lee Scott recognizes are harming its reputation. Scott asks, in reference to Wal-Mart’s response to Katrina, “what would it take for Wal-Mart to be that company, at our best, all the time?” More fundamentally, the case asks, how sustainable is Wal-Mart’s business model? (shrink)