In this paper, we describe all the divisible semiring congruences on a distributive semiring S and also establish a one-......

设p是素数且p≠2,5,k是满足10k≡1(mod p)成立的最小正整数,M n=∏n i=010 ia i(0≤a i≤9,i=0,1,…,n,a n≠0)。运用数学归纳法证......