:: deftheorem Def11111 defines -StoppingTime-like FINANCE5:def 20 :
for Omega being non empty set
for Sigma being SigmaField of Omega
for S being non empty Subset of REAL
for Filt being Filtration of S,Sigma
for k being random_variable of Sigma, ExtBorelsubsets holds
( k is Filt -StoppingTime-like iff k is_StoppingTime_wrt Filt,S );