TRUE OR FALSE
1. To prove a claim using contraposition, we are assuming that the first statement, say p is true.
2. Any number whose last digit is not 0, 2, 4, 6, 8 is an odd number.
3. A lemma is a theorem that is used to prove another theorem
4. 2/3 or 0.666… is a rational number.
5. A conjecture is a statement that is automatically accepted as a fact.
6. All numbers with decimal places are irrational numbers.