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A conjecture concerning primes.

Mills (1947) proved the existence of a real constant A such that |_A^(3^n)_| (1) is prime for all integers n>=1, where |_x_| is the floor function. Mills (1947) did not, ...

A function f:A->B such that B is a set of numbers.

The appropriate notion of integer for surreal numbers.

The Betti numbers of a compact orientable n-manifold satisfy the relation b_i=b_(n-i).

((a+b)/2)^2-((a-b)/2)^2=ab.

The words random and stochastic are synonymous.

Rule 90 is one of the elementary cellular automaton rules introduced by Stephen Wolfram in 1983 (Wolfram 1983, 2002). It specifies the next color in a cell, depending on its ...

A lottery in which three numbers are picked at random from the integers 1-14.

The Young tableau (plural, "tableaux") of a Ferrers diagram is obtained by placing the numbers 1, ..., n in the n boxes of the diagram. A "standard" Young tableau is a Young ...