Question 1
Which statement is the definition of a Cauchy sequence of real numbers?
Question 2
What does the Cauchy criterion say for sequences in $\mathbb R$?
Question 3
Which statement is true about the sequence $a_n=1/n$?
Question 4
Which statement is true about the sequence $a_n=(-1)^n$?
Question 5
Which statement is always true for a Cauchy sequence of real numbers?
