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- 17:24, 3 September 2023 RhubarbJayde talk contribs created page Cantor's diagonal argument (Created page with "Cantor's diagonal argument is a method for showing the uncountability of the set of real numbers. It is a proof by contradiction - one assumes that, towards contradiction, there is a bijection from the natural numbers to the real numbers, and then one constructs a real number not in the range of this function, which contradicts surjectivity. It may be rephrased as the assertion that every function from the naturals to the reals is non-surjective,...") Tag: Visual edit