Dudes and Dudettes, major league Venn-diagramming is back in town!
Until the 1880s, there wasn't a good way to show possibilities in logical representations. Sure, with Euler you could say something was This or That. But it wasn't until Venn came along that folks could say something was This, That, or possibly Both.
Math teachers are always repeating that "you're going to need to know this out in the real world" mantra. We'll be honest. We haven't ever needed to take the cosine of our lunch or find the limit of our commute as our car approaches home. But there were a few mathematical concepts that really stuck with us, and we use every chance we get. We should probably admit here that our favorite part of math was the drawing pictures part (geometry=good, algebra=bad). So when we encountered the Venn Diagram, we knew we had a friend for life.
This one in particular is pretty bodacious. It features the small set (four individuals) formed by the intersection of ninjas and Renaissance artists on a kelly green, 100% cotton shirt. Machine wash cold. Tumble dry low or lay flat to dry. Imported.