Succeed if the value of Expr1 is less than or equal to the value of Expr2.
+Expr1
An arithmetic expression
+Expr2
An arithmetic expression
Description
Both arguments are evaluated and their types adjusted. Then the
resulting numbers are compared. The predicate succeeds if the value of
Expr1 is less than or equal to the value of Expr2. If the system is in
coroutining mode and the arguments are not ground, this predicate delays
until the expressions are fully instantiated.
Fail Conditions
fails if the value of Expr1 is greater than the value of Expr2
Resatisfiable
No
Exceptions
(4) Instantiation fault
Expr1 or Expr2 is a variable (non-coroutining mode only).