simplified Cygwin root: warm start via env, cold start via property, no registry magic;
(*  Title:      HOL/Library/Quotient_Syntax.thy
    Author:     Cezary Kaliszyk and Christian Urban
*)
header {* Pretty syntax for Quotient operations *}
theory Quotient_Syntax
imports Main
begin
notation
  rel_conj (infixr "OOO" 75) and
  map_fun (infixr "--->" 55) and
  fun_rel (infixr "===>" 55)
end