The Venn diagram shows sets P, Q and R with regions labelled, I, II, III and IV. State the region which represents set [P∩(Q∪R)′]
Q∪R is represented by II,III,IV
∴(Q∪R)′ is represented by everything excluding II,III,IV.
Hence,P∩(Q∪R)′ is represented by ξ∩P=I