sep-2-16_00

exercise-sep-2.txt

@@ -0,0 +1,15 @@
+U = {x € Z+ : x <= 10}, A = {x : x udda, x != 5}, B = {x : x primtal}.
+
+Bestäm |A|, |B|, ¨A, ¨B, AuB, A↓uB, och A\B
+
+A = {1, 3, 7, 9}
+B = {2, 3, 5, 7}
+
+|A| = 4
+|B| = 4
+¨A = {2, 4, 5, 6, 8, 10}
+¨B = {1, 4, 6, 8, 9, 10}
+AuB = {1, 2, 3, 5, 7, 9}
+A↓uB = {3, 7}
+A\B = {1, 9}
+A"delt"B = {1, 2, 5, 9}