A’ represents the complement close complement (of a set) ... Slide 1 of 10, Example one. Drawing a Venn diagram. ξ equals, open brace bracket, positive whole numbers less than ten, ...

Slide 1 of 10, Example one.Notation and regions in a Venn diagram. An image of a Venn diagram with two intersecting circles. The circle on the left is labelled, A.