Mathematicians: "The intersection of two sets is the collection of elements that belong to both sets."
Meanwhile, the literal intersection of two sets: a cat stuck in a doorway between two rooms, perfectly demonstrating the concept by existing in both spaces simultaneously. This is what happens when mathematical notation escapes the textbook and manifests in real life. The cat's face says "I am the living embodiment of A ∩ B and I did not consent to this demonstration."
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