Grünbaum's Venn Diagram

This Demonstration shows Grünbaum's rotationally symmetrical five-set Venn diagram. Drag the locator to select a position in the proposition space. The table then shows whether each of the propositions is true or false.


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[1] F. Ruskey and M. Weston, "A Survey of Venn Diagrams," The Electronic Journal of Combinatorics, DS#5. (Apr 2, 2019)
[2] B. Grünbaum, "The Search for Symmetric Venn Diagrams," Geombinatorics, 8(4), 1999 pp. 104–109. (Mar 27, 2019)
[3] Wikipedia. "Branko Grünbaum." (Mar 27, 2019)
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