= OperatorPrecedence

<<StandardML#,Standard ML>> has a built in notion of precedence for
certain symbols.  Every program that includes the
<<BasisLibrary#,Basis Library>> automatically gets the following infix
declarations.  Higher number indicates higher precedence.

[source,sml]
----
infix 7 * / mod div
infix 6 + - ^
infixr 5 :: @
infix 4 = <> > >= < <=
infix 3 := o
infix 0 before
----
