True or false on sets

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   A set is a well defined collection.

2. Statement is true

   No

   Statement

   Roster form repeats an element twice.

3. Statement is true

   Yes

   Statement

   The empty set has no elements.

4. Statement is true

   No

   Statement

   The natural numbers form a finite set.

5. Statement is true

   Yes

   Statement

   The universal set is written as U.

6. Statement is true

   No

   Statement

   A power set holds only one subset.

Instructions

Decide whether each statement is true or false.

Explanation