- #1
carlodelmundo
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Homework Statement
Let their be a set A, and let B be the set: {A, {A}} (the set containing the elements A and the
set that contains element A)
As you know, A is an element of B and {A} is also an element of B.
Also, {A} is a subset of B and {{A}} is also a subset of B.
However, A is not a subset of B
Homework Equations
[URL]http://65.98.41.146/~carlodm/phys/123.png[/URL]
The Attempt at a Solution
See my drawing above. I created a Venn Diagram to deduce the logic with no clear results. In the first diagram to the left, I can clearly see that the element A is a subset of B ... yet.. it is not? Can someone explain?
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