consider ZS being non empty set , O being Element of ZS, F being BinOp of ZS, G being Function of [:REAL ,ZS:],ZS;
take
RLSStruct(# ZS,O,F,G #)
; not RLSStruct(# ZS,O,F,G #) is empty
thus
not the carrier of RLSStruct(# ZS,O,F,G #) is empty
; STRUCT_0:def 1 verum