YES TRS: not(and(x,y)) -> or(not(x),not(y)) not(or(x,y)) -> and(not(x),not(y)) and(x,or(y,z)) -> or(and(x,y),and(x,z)) max/plus interpretations on N: not_A(x1) = max{0, x1} not#_A(x1) = max{0, x1} and_A(x1,x2) = max{0, x1, x2} and#_A(x1,x2) = max{0, x1, x2} or_A(x1,x2) = max{0, x1, x2} or#_A(x1,x2) = max{0, x1, x2} precedence: not > and > or