Symbols of Venn Diagrams

Thanks to http://tube.geogebra.org/scork for sharing this awesome applet![br][br]Venn Diagram Logic - 2 sets
Symbols of Venn Diagrams
Below are 3 new symbols relating to Venn Diagrams. Click on the different boxes to discover what the symbols mean.[br][math]\cup[/math] [math]\cap[/math] '
What word could you use to replace [math]\cap[/math]?
What word could you use to replace [math]\cup[/math]?
What word could you use to replace ' ?
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