You can define a one-to-one mapping between the sets {1 2} and {3 4}, but I don'...

		orbital223 on May 2, 2023 \| parent \| context \| favorite \| on: Is infinity an odd or even number? (2011) You can define a one-to-one mapping between the sets {1 2} and {3 4}, but I don't think anyone would say they are equal.