We deal with measures on Delta -l-semigroups, in particular on MV-algebras.
Examples of such measures are T-infinity-valuations on clans of fuzzy sets
. We first provide the Hahn decomposition theorem for measures on Delta -l-
semigroups. This is then used to obtain a representation theorem for such m
easures, which itself is a basic tool in the proof of Liapounoff type theor
ems. (C) 2001 Elsevier Science B.V. All rights reserved.