2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/155622An attempt is made to clarify the difference between a theorem derived by Evans and Searles in 1994 on the statistics of trajectories in phase space and a theorem proved by the authors in 1995 on the statistics of fluctuations on phase space trajectory segments in a nonequilibrium stationary state.3 pages, RevtexCondensed MatterChaotic Dynamicstext