YES TRS: or(x,x) -> x and(x,x) -> x not(not(x)) -> x not(and(x,y)) -> or(not(x),not(y)) not(or(x,y)) -> and(not(x),not(y)) linear polynomial interpretations on N: or_A(x1,x2) = x1 + x2 + 1 or#_A(x1,x2) = x1 + x2 + 1 and_A(x1,x2) = x1 + x2 + 1 and#_A(x1,x2) = x1 + x2 + 1 not_A(x1) = x1 not#_A(x1) = x1 precedence: not > or = and