A Topologist Plays Set
Playing the card game Set, a topologist insists diamonds and squiggles are the same shape, so three mismatched cards form a valid set.
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Free for classrooms, worksheets, slides and other non-commercial use under CC BY-NC 4.0, with credit to Ben Orlin.
Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2023-11-07-a-topologist-plays-set/ (CC BY-NC 4.0)Transcript
[Three Set cards: two solid blue diamonds, two striped blue diamonds, two outlined blue squiggles]
The Topologist: "If that's not a set, then everything I believe about reality is false. But that would contradict everything I believe about reality. Therefore, that's a set."