Associativity of stochastic integration implies that "H" is "X"-integrable, with integral "H" · "X" = "Y", if and only if "Y"0 = 0 and "K" · "Y" = ("KH") · "X".
Associativity of stochastic integration implies that "H" is "X"-integrable, with integral "H" · "X" = "Y", if and only if "Y0" = "0" and "K" · "Y" = "(KH)" · "X".