i was hoping somebody could help me with these problems
1) Are the following statements true or false?
(a) 2 є S, where
S= {x є R|x is the square root of an integer}
b) ø є {ø}
c) ø c ø
d) {{ø}} c {ø, {ø}}
e) {ø, {ø}, {ø, {ø}}} has the cardinality 4
f) {ø, {a}, {ø,a}} is the powerset of...