Determine whether the following is true or false:

a) 0 &isin [&empty]
  This is false becaue 0 is not a set

b) &empty &isin {0]
  This is false because the only element of the {0} is 0

c) {0} &sub &empty
  This is false because null is not a set

d) &empty &sub {0}
  This is True because null is a subset of all sets.

e) {0} &isin {0}
  This is false because {0} only contains 0 and not the set {0}

f) {0} &sub {0}
  This is false because a set can't be a &sub of itself

g) {&empty} &sube {&empty}
  This is true because of the underline. A set can be a &sube (Subset or equal to) of itself.