http://www.saber.ula.ve/handle/123456789/4714 2000 Tue, 21 Apr 2026 19:30:15 GMT 2026-04-21T19:30:15Z http://www.saber.ula.ve/handle/123456789/22685 Ordering explanations and the structural rules for abduction. Pino P., Ramón A.; Uzcátegui Aylwin, Carlos Enrique Wed, 07 Jun 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22685 2006-06-07T09:00:00Z http://www.saber.ula.ve/handle/123456789/22686 Notas de Matemática Wed, 07 Jun 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22686 2006-06-07T09:00:00Z