Thanks. What I meant was that for k=3 and t=2, the condition in the set reads ##x_2>max(x_{-1},x_{0},x_{1},x_{3},x_{4},x_{5}) \wedge (x_{-1},x_{0},x_{1},x_2,x_{3},x_{4},x_{5}) \in \mathbb{T}^{7}## but since ##\mathbb{T} = \{1,2,3,...,T\}##, ##x_{-1},x_{0}## do not exist and therefore ##...