Ask your own question, for FREE!
Mathematics 23 Online
OpenStudy (anonymous):

Which of the following is a counterexample to that statement “All prime numbers are odd” a:The statement has no counterexamples b:What you are trying to prove c:The theorems you will use d: The definitions of important vocabulary

OpenStudy (mathmate):

A counterexample is an example (a case) where the statement is false. One counter example is sufficient to invalidate the statement, compared to a million verifications that a statement is true does not prove anything. In your mind, are all prime numbers odd?

OpenStudy (anonymous):

no so it wud be A?

OpenStudy (mathmate):

Is 2 a prime?

OpenStudy (anonymous):

yes but its not odd

OpenStudy (mathmate):

So the statement is false. However, I do not see how the remaining 3 answers relate to the question. Can you check if there's a typo?

OpenStudy (anonymous):

ohh there was a: the statement has no counterexamples b:21 is a prime number but not odd c:15 is an odd number but not prime d:2 is a prime number but not odd

OpenStudy (anonymous):

i mixed questions sorry

OpenStudy (mathmate):

I guess you have your answer!

OpenStudy (anonymous):

haha yea i do thank you so much!

OpenStudy (mathmate):

You're welcome!

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!