... successful, generates an incidencematrix uniformly at random from all incidence matrices. The probability of success canbe estimated and the asymptotic formula for F1111(n) results.Let R be a binary ... all pairs (is, js) different, but not all is, jsdifferent.The first term corresponds to two preorders formed in the following way. The is, jsare first selected. One preorder is formed ... an upper bound for allthe others. Indeed, we will see later that Fijkl(n) = o(F1111(n)) for (i, j, k, l) = (1, 1, 1, 1).It is possible to compute this function explicitly. For fixed n, let...