👉 Heptarchy is a mathematical concept that describes how many numbers in a set are less than or equal to each other. It can be defined as follows: - A set of n elements has a heptarchy if there exists an integer k such that 2 ≤ k ≤ n and for all i = 1, ..., 7, if x < y < z < w < x + 6 < y + 6 < z + 6 < w + 6 then (x
