. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.
@GabrielDuquette So if you have sets {A, B, C} {bicycle, penguin, spoon} then A -> bicycle, B -> penguin C -> spoon defines an isomorphism.
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@GabrielDuquette So if you have sets {A, B, C} {bicycle, penguin, spoon} then A -> bicycle, B -> penguin C -> spoon defines an isomorphism.