theorem MyFunc6: :: FINANCE3:36
for k1, k2 being Element of REAL
for Omega being non empty set st Omega = {1,2,3,4} holds
for Sigma being SigmaField of Omega
for I being non empty real-membered set
for MyFunc being ManySortedSigmaField of I,Sigma st MyFunc . 1 = Special_SigmaField1 & MyFunc . 2 = Special_SigmaField2 & MyFunc . 3 = Trivial-SigmaField {1,2,3,4} holds
for eli being Element of I st eli = 2 holds
ex f being Function of Omega,REAL st
( f . 1 = k1 & f . 2 = k1 & f . 3 = k2 & f . 4 = k2 & f is El_Filtration (eli,MyFunc), Borel_Sets -random_variable-like )