Question 320034

A = {b, l, a, z, e, r}, B = {b, a, l, e}, C = {a, b, l, e}, D = {l, a, b}, E = {a, b, l} 

E ⊂ C
<pre><b>
That means that {a, b, l} contains only elements of {a, b, l, e},  but doesn't contain them all.  
That's true.
</pre></b>

E &#8838; B
<pre><b>
That means that {a, b, l} contains only elements of {b, a, l, e}, and may even contain them all.  
That's also true. It doesn't contain them all, but it doesn't have to.

</pre></b>
D &#8838; B
<pre><b>
That means that {l, a, b} contains only elements of {b, a, l, e}, and may even contain them all.  
That's also true. It doesn't contain them all, but it doesn't have to.
</pre></b>
B &#8834; C
<pre><b>
That means that {b, a, l, e} contains only elements of {a, b, l, e},  but doesn't contain them all.  
That's false because it contains them all.
</pre></b>
C &#8838; A
<pre><b>
That means that {a, b, l, e} contains only elements of {b, l, a, z, e, r}, and may even contain them all.  
That's also true. It doesn't contain them all, but it doesn't have to.

So the only false one is B &#8834; C

Edwin</pre>