true of false? if you took a true "if then" statement and inserted a not in each clause, the new statement would also be true. A
2 answers:
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I'll abbreviate and
, so the identity to prove is
On the left side, we can simplify a bit:
Then
So the establish the original equality, we need to show that
Combine the fractions:
We can rewrite the denominator as
then using the fact that , we get
so that we have
as desired.
