2 | 8. a: x: size ||filter( j.m1(x,j);upto(0;size))|| 9. x: size 10. i1: ||filter( j.m1(x,j);upto(0;size))|| 11. a = < x,i1 > x: size ||filter( j.m1(x,j);upto(0;size))|| < x,filter( j.m1(x,j);upto(0;size))[i1] > {p:( size size)| m1(1of(p),2of(p)) } | 7 steps |