Question 1
What is the main idea of a proof by contradiction?
Question 2
To prove that a statement is true by contradiction, what should you assume at the start?
Question 3
Which result would count as a contradiction in a proof by contradiction?
Question 4
Which statement best describes why proof by contradiction is useful in Number and Algebra?
Question 5
Suppose you want to prove that there is no smallest positive rational number. In a contradiction proof, what would you assume?
