Returns true if the first argument is greater than the second.
xs:base64Binary values. Also used in
the definition of the "le" operator.op:base64Binary-greater-than( $arg1 as xs:base64Binary,$arg2 as xs:base64Binaryxs:booleanThe function call op:base64Binary-greater-than($A, $B) is defined to return
the same result as op:base64Binary-less-than($B, $A)