Hello, could you tell me if xpress supports "conditional constraints", I mean constraints as:
if x_i = x_j = 1, then y_i + C <= y_j or y_j + C <= y_i
if x_i = c_i = 1, then z_i <= a
if x_i = d_i = 1, then z_i <= b
where c_i and d_i are binary constants, a and b are real constants, y_i and z_i are a real variables, and x_i is a binary variables (0 or 1).
or I need to convert that constraints to linear?
Thank you in advance.