
theorem Th19:
for L being non trivial multLoopStr_0
for z being rational_function of L holds z = [z`1,z`2]
proof
let L be non trivial multLoopStr_0;
let z be rational_function of L;
consider p1 being Polynomial of L such that
A1: ex p2 being non zero Polynomial of L st z = [p1,p2] by Def8;
consider p2 being non zero Polynomial of L such that
A2: z = [p1,p2] by A1;
thus thesis by A2;
end;
