Show multiple sets:

Use Interval and single points:

Group intervals and points into a single list to represent a single set:

Use an inequality:

Use a logical conjunction of equalities and inequalities:

Use a list to represent more than one set:

Use a more complicated inequality:

Use a theme with dark background and high-contrast colors:

Use a theme with detailed information:

By default, no legends are used:

Create a legend based on the expressions:

Create a legend with placeholder text:

Create a legend with specific labels:

PlotLegends picks up PlotStyle values automatically:

Use Placed to position legends:

Use LineLegend to modify the appearance of the legend:

By default, different styles are chosen for multiple curves:

Explicitly specify the style for different curves:

Specify styles for the endpoints:

Use a theme with simple ticks and bright colors:

Add another theme with legends:

Change the colors:

By default, sets are evenly spaced above the axis:

Use Spacings->None to place the sets on top of one another:

Use Spacings->0 to place all the sets on the axis:

Place the second set close to the first set: