| a | b | c | m |
|---|---|---|---|
| 0 | 0 | 0 | m0 |
| 0 | 0 | 1 | m1 |
| 0 | 1 | 0 | m2 |
| 0 | 1 | 1 | m3 |
| 1 | 0 | 0 | m4 |
| 1 | 0 | 1 | m5 |
| 1 | 1 | 0 | m6 |
| 1 | 1 | 1 | m7 |
Venn diagrams with three terms can be represented using three overlapping circles, symmetrically arranged with their centers at the vertices of an equilateral triangle.
A three-term Venn diagram, with sets a, b, and c, is shown below, with its minterms labeled.
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| Venn diagram regions | truth table |
The exclusive or operation for three terms is shown in the following Venn diagram.
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Matlab code for Venn diagrams may be downloaded from venn.zip.
Maintained by John Loomis, last updated 8 June 2004