(** %\subsection*{ support : equal\_syntax.v }%*) (** This file introduces the notation [='] for the [Equal] relation. We separate this from the rest of the algebra syntax since many definitions only require setoids and nothing more. %\label{equalsyntax}% *) Require Export Sets. Notation "a =' b 'in' c" := (Equal 1!c a b) (at level 5, b at level 4). Notation "a =' b" := (Equal a b) (at level 5, only parsing).