Series of steps which is seemingly correct but contains a flawed argument, or a spurious proof of an obvious contradiction such as that 1 = 2. Mathematical fallacies differ from simple mistakes in that there is an element of concealment in the presentation of the proof.
Modern successor to arithmomancy, embodying the belief that numbers can explain the workings of the universe and thus allow predictions to be made.
Any positive integer greater than zero that has only two proper divisors, 1 and the number itself. Thus the lowest prime number is 2, which is also the only even prime.
A perfect number is a positive integer the sum of whose proper divisors is equal to the number itself.
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| Mathematical fallacy | |
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| Series of steps which is seemingly correct but contains a flawed argument, or a spurious proof of an obvious contradiction such as that 1 = 2. Mathematical fallacies differ from simple mistakes in that there is an element of concealment in the presentation of the proof. | |
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