YES weighted path orer with linear polynomial on natural numbers: min_A(x1) = x1 + 1 cons_A(x1,x2) = x1 + x2 + 2 nil_A = 0 le_A(x1,x2) = x2 + 2 s_A(x1) = x1 + 3 0_A = 5 false_A = 6 true_A = 4 precedence: nil > true > false > 0 > le > s > min > cons status: min: [1] cons: [1,2] nil: [] le: [] s: [1] 0: [] false: [] true: [] the condition le(x1,min(nil())) ->> true() is unsatisfiable for all substitutions.