Question - het PR-R be defined by P(x9) = { 191 p(x, y) 1x1 ; X=0 are which of the following statements @ P(x,y)=0 iff x=9=0 1 P(x, y) >0 for all x,y p(dx, dy)= |a|P(x, y) for all der and for all x,y true ? ; x =0 d) P (x+x, 9 +4) P(x, y) +P(4) for all (x19), (x, 9).