úλýNoneH*The partial semigroup associativity axiom:For all x, y, z such that appendMaybe x y = Just xy and appendMaybe y z = Just yx, #appendMaybe x yz = appendMaybe xy z. Safe          5partial-semigroup-test-0.0.0.1-1tiHLkyQTXoDxvlNuyLZkWTest.PartialSemigroupPaths_partial_semigroup_testassoccatchIOversionbindirlibdirdatadir libexecdir sysconfdir getBinDir getLibDir getDataDir getLibexecDir getSysconfDirgetDataFileName