It is well known that for a total qualitative probability order â© S, F=đ« (S), âȘ âȘâŠÂ S, F=đ« (S),PâȘ
Scotts axiom's, in addition to (1), (2), (3)
tothe axioms of non negativity :
(1)â (A_i)â F: ·  {A}â„ â Â
2Non triviality
{S}>â
3. comparability â (A,B)â F: : [B >A]â» [A=o B] Â ]â» A=Bâ PR(A)=P(A)=P(A)