In this paper, based on Weber's (1984) integrals for Archimedean t-con
orms perpendicular to-decomposable measures, integrals of set-valued f
unctions for Archimedean t-conorms perpendicular to-decomposable measu
res are established. Some results similar to Aumann's set-valued integ
rals are given. These include convexity, closedness, convergence theor
ems, etc. All these are the generalization of Aumann's results.