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+# example program: constructing functions out of order
+#
+# We construct a factorial function with separate base and recursive cases.
+# Compare factorial.mu.
+#
+# This isn't a very tasteful example, just a basic demonstration of
+# possibilities.
+
+def factorial n:num -> result:num [
+  local-scope
+  load-inputs
+  <factorial-cases>
+]
+
+after <factorial-cases> [
+  # if n=0 return 1
+  return-unless n, 1
+]
+
+after <factorial-cases> [
+  # return n * factorial(n - 1)
+  {
+    break-unless n
+    x:num <- subtract n, 1
+    subresult:num <- factorial x
+    result <- multiply subresult, n
+    return result
+  }
+]
+
+def main [
+  1:num <- factorial 5
+  # trailing space in next line is to help with syntax highlighting
+  $print [result: ], 1:num, [ 
+]
+]