>/2
[ISO]+Expr1 >
+Expr2
Succeeds if the result of evaluating Expr1 is strictly greater than the result of evaluating Expr2.
Evaluates Expr1 and Expr2 as arithmetic expressions and compares the results.
Arithmetic errors (see ref-ari-exc).
| ?- "g" > "g". no
| ?- 4*2 > 15/2. yes