The problem is, however, it’s a tool of limited use. Once you get beyond three sets, especially three complicated sets, it’s hard to show relationships clearly.

However, the diagram itself is unlikely to have direct practical applications. “We use two and three-set Venn diagrams for working out simple logical puzzles,” Cameron says.

Venn diagrams typically use overlapping circles to show all possible relationships between sets. Traditionally, they include just two or three sets.

Venn diagrams close Venn diagramA diagram used to sort data. are a visual way of representing sets close setA collection of information or letters or numbers. The members of the set can be listed ...