To write: an indirect proof in paragraph form.
Explanation of Solution
Given information:
People wearing coats are shivering as they come to the door.
Prove:
It’s cold outside.
Calculation:
Consider the following statement:
People wearing coats are shivering as they come to the door.
An indirect proof is initiated by starting that the conclusion is untrue.
Proof:
Assume temporarily that it is not cold outside.
However, it is given that the people who come to the door are shivering and are wearing coats, If it were not cold outside, then they would not be shivering.
Hence, our assumption that It is not cold outside is incorrect.
Therefore, “It’s cold outside”.
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