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diff --git a/tiger-compiler/tests/good/fact.tig b/tiger-compiler/tests/good/fact.tig
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+/* define a recursive function */
+let
+ /* calculate n! */
+ function fact(n : int) : int =
+ if n = 0
+ then 1
+ else n * fact(n - 1)
+in
+ print_int(fact(10));
+ print("\n")
+end