val (+) : t @ local -> (t @ local -> t @ local) @ localval (-) : t @ local -> (t @ local -> t @ local) @ localval (*) : t @ local -> (t @ local -> t @ local) @ localval (/) : t @ local -> (t @ local -> t @ local) @ localval (=) : t @ local -> (t @ local -> bool) @ localval (<>) : t @ local -> (t @ local -> bool) @ local