theorem Th10: :: MSATERM:10

for S being non empty non void ManySortedSign
for V being non-empty ManySortedSet of the carrier of S
for t being Term of S,V
for o being OperSymbol of S st t . {} = [o, the carrier of S] holds
ex a being ArgumentSeq of Sym (o,V) st t = [o, the carrier of S] -tree a