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-rw-r--r--sem7/pp/lec5.hs9
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+
+-- Opgaver før lecture
+sum' 0 = 0
+sum' x = x + sum' (x-1)
+
+flip' = map (\(x, y) -> (y, x))
+-- Here i would guess that the type is [(a, b)] -> [(b, a)]
+-- When quering i get flip' :: [(b, a)] -> [(a, b)]
+-- Yeah they are the same