Question 606645
Given the sets:
 vowels = {'a' ,'e', 'i', 'o', 'u'} and name = {'a', 'l', 'l, 'a', 'n'} 
Which is FALSE?
 - name ∪ vowels = {'a'}
<pre>
That's false because (name &#8746; vowels) = {'a', 'e', 'i', 'l', 'n', 'o','u'}
</pre>
 - 'a' &#8712; (vowels &#8745; name)
<pre>
That's true because (vowels &#8745; name) = {'a'} and 'a' &#8712; {'a'}
</pre>
 - The cardinality of name = The cardinality of {'a', 'l', 'n' }
<pre>
That's true because 'a', 'l', and 'n' are the only elements in the
set name, and that cardinality is 3.
</pre>
 - The cardinality of vowels is equal to the cardinality of name. 
<pre>
That's false because the cadinality of vowels is 5 and the cardinality
of names is only 3.


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</pre>
I would think it was D because the cardinality of vowels would be 5 and the cardinality of name would be 3, due to having more than one of the same letter

<pre>
Yes, but the first one is also false.

Edwin</pre>