  Sufficiency of jets is a very important notion introduced by Rene Thom in
order to establish the structural stability theory. The criteria for some
sufficiency of jets are known as the Kuo condition and Thom type inequality,
which are defined using the Kuo quantity and Thom quantity. Therefore these
quantities are meaningful. In this paper we show the equivalence of Kuo and
Thom quantities. Then we apply this result to the relative conditions to a
given closed set.
