Write two types of indirect proof.
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proof of the contrapositive and proof by contradiction. They are closely related, even interchangeable in some circumstances, though proof by contradiction is more powerful.
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Step-by-step explanation:
A proof is a way of claiming that we understand that a notion of mathematics is true. It is a logical argument that sets out a statement's reality.
An indirect proof is the proof that the real declaration is true because it leads to a contradiction in the premise that its negation is true. In an indirect proof, instead of showing that the conclusion which is to be proved is true, it is shown that all the other alternatives are false.
There are two types of indirect proofs contradiction and contraposition.
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