Isomorphic Twins
Mathematician twins object to 'identical,' preferring 'isomorphic.'
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Cartoon by Ben Orlin, Math with Bad Drawings. https://cartoons.mathwithbaddrawings.com/2018-11-12-isomorphic-twins/ (CC BY-NC 4.0)Transcript
A: "So, what's it like being identical twins?"
Twin 1: "Actually, 'identical' suggests the set of us has only 1 element." Twin 2: "We prefer 'isomorphic.'"