Euler Diagram/Examples

Examples of Euler Diagrams
The following examples show:
 * (a) The subset relation $T \subseteq S$
 * (b) Examples of disjoint sets $S \cap T = \O$
 * (c) The most general case: $S \cap T \ne \varnothing$, $T \nsubseteq S$, $S \nsubseteq T$


 * EulerDiagrams2Sets.png

The shape of the areas is irrelevant, but usually circles are used.