Data commit

Task/Mutual-recursion/Brat/mutual-recursion.brat

@@ -0,0 +1,16 @@
+female = null #yes, this is necessary
+
+male = { n |
+  true? n == 0
+    { 0 }
+    { n - female male(n - 1) }
+}
+
+female = { n |
+  true? n == 0
+    { 1 }
+    { n - male female(n - 1 ) }
+}
+
+p 0.to(20).map! { n | female n }
+p 0.to(20).map! { n | male n }