September 2017 Update

Task/Set/Ceylon/set.ceylon

@@ -0,0 +1,18 @@
+shared void run() {
+    value a = set {1, 2, 3};
+    value b = set {3, 4, 5};
+    value union = a | b;
+    value intersection = a & b;
+    value difference = a ~ b;
+    value subset = a.subset(b);
+    value equality = a == b;
+
+    print("set a:         ``a``
+           set b:         ``b``
+           1 in a?        ``1 in a``
+           a | b:         ``union``
+           a & b:         ``intersection``
+           a ~ b:         ``difference``
+           a subset of b? ``subset``
+           a == b?        ``equality``");
+}