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# Sets and Functions : The Symmetric Difference of Two Sets

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The symmetric difference of two sets A and B, denoted by A &#916; B, is defined by A &#916; B = ( A - B ) U ( B - A ); it is thus the union of their differences in opposite orders. Show that A &#916; ( B &#916; C ) = ( A &#916; B ) &#916; C.

https://brainmass.com/math/geometry-and-topology/sets-functions-symmetric-difference-two-sets-111265

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Topology
Sets and Functions (X)
The Algebra of Sets
The Symmetric Difference of two Sets

By:- Thokchom Sarojkumar Sinha

The symmetric difference of two sets and , denoted by , is defined by ; it is thus
the union of their differences in opposite orders. Show that

Solution:- To show that

We have,

,
where

For

...

#### Solution Summary

The symmetric difference of two sets is investigated in an attached word file. The solution is well-detailed, including written notes to aid understanding and many lines of fully-displayed calculation.

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