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THEORIA. Revista de Teoría, Historia y Fundamentos de la Ciencia 2009, 24 2

Autor: Luis Carlos MEDINA

Fuente: http://www.redalyc.org/articulo.oa?id=339730809007


Introducción



THEORIA.
Revista de Teoría, Historia y Fundamentos de la Ciencia ISSN: 0495-4548 theoria@ehu.es Universidad del País Vasco-Euskal Herriko Unibertsitatea España MEDINA, Luis Carlos Evolution Nodes in Newtonian Supertasks THEORIA.
Revista de Teoría, Historia y Fundamentos de la Ciencia, vol.
24, núm.
2, 2009, pp.
229247 Universidad del País Vasco-Euskal Herriko Unibertsitatea Donostia-San Sebastián, España Available in: http:--www.redalyc.org-articulo.oa?id=339730809007 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Evolution Nodes in Newtonian Supertasks Luis Carlos MEDINA Recibido: 21.10.2008 Versión final: 21.3.2009 BIBLID [0495-4548 (2009) 24: 65; pp.
229-247] ABSTRACT: The present article provides an analysis of the instants of a system that performs a Newtonian supertask. For each instant it studied the possibility of the system having, from the instant in question, more than one possible course of evolution; i.e.
the possibility of it being an evolution node.
This analysis shows that some supertasks presented as deterministic in Pérez Laraudogoitia (2007) are in fact indeterministic and specifies the difficulties ahead in showing the radical indeterminism suggested by Atkinson & Johnson (2009). Keywords: critical instant, evolution node, failure of energy conservation, indeterminism, Newtonian Mechanics, supertasks. 1.
Introduction Two main anomalies are discussed in the literature on Newtonian supertasks: indeterminism and the failure of energy conservation.
The prevailing situation is that both appear together; when indeterminism is present, energy conservation fails.
Indeed, the only set of examples that generates indeterminism without the failure of energy conservation is the one presented in Pérez Laraudog...





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