Definitions | t T, x:A. B(x), ||as||, {i..j }, , S T, S T, increasing(f;k), P & Q, A & B, x:A. B(x), P  Q, False, A, A B, sublist_occurence(T;L1;L2;f), i j < k, P Q, Dec(P), {T}, SQType(T), l[i], Prop, i j, hd(l), i< j, i j, P  Q, P  Q, fadd(f;g), nondecreasing(f;k), True, T |