theorem :: TEX_4:74

for Y being non empty TopStruct
for x, y being Point of Y holds
( y is Point of (MaxADSspace x) iff TopStruct(# the carrier of (MaxADSspace y), the topology of (MaxADSspace y) #) = TopStruct(# the carrier of (MaxADSspace x), the topology of (MaxADSspace x) #) )