Question 627180
Rewrite the following using mathematical symbols:
  A. Q is equal to the set whose elements are a, b, c.
<pre>
Q = {a, b, c}
</pre>
  B. The set containing 1 and 3 only is a proper subset of the set of natural numbers.
<pre>
{1, 3} &#8834; N
</pre>
C. The set containing 1 and 3 only is not a subset of {1, 4, 6, 7}
<pre>
{1, 3} &#8840; {1, 4, 6, 7}
</pre>
D. The empty set does not contain 0 as an element.
<pre>
Either this way  &#8709; &#8716; 0  or  this way: 0 &#8713; &#8709;

If you prefer you can write the empty set as an empty pair of braces {}   

Edwin</pre>