This paper presents a belief revision operator that considers time intervals for modelling norm change in the law. This approach relates techniques from belief revision formalisms and time intervals with temporalised rules for legal systems. Our goal is to formalise a temporalised belief base and corresponding timed derivation, together with a proper revision operator. This operator may remove rules when needed or adapt intervals of time when contradictory norms are added in the system. For the operator, both constructive definition and (...) an axiomatic characterisation by representation theorems are given. (shrink)
Danto inicia su filosofía de la historia del arte con un núcleo problemático que inaugura el modernismo: una obra de arte llega a ser indiscernible de una mera cosa, en la medida en que es el resultado lógico de la narrativa de un cierto periodo. Hablar sobre el fin del arte es hablar de las razones que sustentan esa narración y de la posibilidad de su culminación. Se propone una crítica, a partir de la relación entre esencialismo, historicismo y pluralismo, (...) para examinar su controversial tesis sobre la clausura histórica del arte por agotamiento de su impulso cognitivo. Danto begins his philosophy of the history of art with the problematic issue that characterizes modernism: a work of art becomes indiscernible from a mere thing insofar as it is the logical result of the narrative of a certain period. To speak of the end of art is to speak of the reasons that support such narrative and the possibility of its culmination. The article proposes a critique on the basis of the relation among essentialism, historicism, and pluralism, in order to examine Danto's controversial thesis regarding the historical end of art due to the exhaustion of its cognitive impulse. (shrink)
Transplantation continues to push the frontiers of medicine into domains that summon forth troublesome ethical questions. Looming on the frontier today is human facial transplantation. We develop criteria that, we maintain, must be satisfied in order to ethically undertake this as-yet-untried transplant procedure. We draw on the criteria advanced by Dr. Francis Moore in the late 1980s for introducing innovative procedures in transplant surgery. In addition to these we also insist that human face transplantation must meet all the ethical requirements (...) usually applied to health care research. We summarize the achievements of transplant surgery to date, focusing in particular on the safety and efficacy of immunosuppressive medications. We also emphasize the importance of risk/benefit assessments that take into account the physical, aesthetic, psychological, and social dimensions of facial disfiguration, reconstruction, and transplantation. Finally, we maintain that the time has come to move facial transplantation research into the clinical phase. (shrink)
Gaston Bachelard's thought remains a continual source of inspiration for a phenomenological psychology that takes human habitation as a fundamental given and as an abiding mystery of the human condition. the following essay explores the ideas Bachelard developed in the course of his study of poetry. It examines in particular his vision of imagination as a unique passage way by means of which we reach an inhabitable, intersubjective and fully human world. Within that perspective, our lives are constantly renewed by (...) the appearance of a revealing image or a telling metaphor. Each time that we are awakened by this appeal we commemorate the birth and rebirth of a human world. (shrink)
We prove that if GCH holds and τ = 〈κα : α < η 〉 is a sequence of infinite cardinals such that κα ≥ |η | for each α < η, then there is a cardinal-preserving partial order that forces the existence of a scattered Boolean space whose cardinal sequence is τ.
A history of the UC San Diego (UCSD) Philosophy Department from its founding in 1963 through approximately 2004; significant publications until 2011 are also noted. The history was produced for the sake of the celebrations on the occasion of the 50th Anniversary of UCSD (in 2013).