2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73338This is an expository paper on the dynamical properties of substitutions in propositional many-valued logics. We identify substitutions with endomorphisms of free algebras, and we study their actions on the dual spectral spaces.23 pages, 5 figuresLogicDynamical Systems03B50; 37A05text