Tuples {1,2,..,m} [m]=0,1,-1} TTNOE MATCH [mn=m××m I(mj"mr Product rule: finite sets S and T |S×T=|S1·lTITuples mn |[m] n| = Product rule: |S ⇥ T| = |S|·|T| finite sets S and T [m] ⇥ ··· ⇥ [m] ⇤ ⇥￾ ⌅ n [m] n = [m] = {0, 1,...,m ￾ 1} {1, 2,...,m}