2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/162893A \emph{meadow} is a commutative ring with an inverse operator satisfying $0^{-1}=0$. We determine the initial algebra of the meadows of characteristic 0 and show that its word problem is decidable.11 pagesRings and Algebrastext