Respuesta :
In this case, we assume p is not equal to q, So our assumption is wrong, which means the opposite of it is correct that "p is equal to q" .
what do you mean by indirect proofs?
When applying indirect proofs, we can assume the negation of the conclusion is true, and show that this assumption would lead to a contradiction of the statement.
In this case, we assume p is not equal to q,
that is we assume p ≠ q
Then multiply by any real number a both side
ap ≠ aq
p = q
which is a contradiction.
So our assumption is wrong, which means the opposite of it is correct.
Learn more about indirect proofs;
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