2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/30208The current document contains a brief description of a system for Reasoning about Actions and Change called PAL (Pertinence Action Language) which makes use of several reasoning properties extracted from a Temporal Expert Systems tool called Medtool.5 pagesArtificial IntelligenceLogic in Computer ScienceI.2.4; F.4.1text