Answer :
It is true that in the body of an indirect proof, you must show that the assumption leads to a contradiction.
Answer: The given statement is True.
An indirect proof is a type of proof, which assumes the reverse/ opposite of what needs to be proved and therefore, it arrives at a contradiction eventually. In other words, in such proof, any given statement/ problem is initially assumed false and after going through experimentation/ calculation, it arrives at a contradiction, proving the given statement right.
Thus, given statement about indirect proof is correct.