Mam...intha videola nowhere dense explain panni iruppingala mam...athula cl(cl E^c)=R nu oru second condition solliruppinga mam...intha second condition ku oru example kodunga mam..first conditions int(cl E)=empty ku example koduthurukkinga...ithea maari second conditionkum example sollunga mam...
Oh sorry ... Proper superset is also same as proper subset ... Proper superset shouldn't be equal to the given set . But it must be a superset of the given set.