SOLUTION: Let A = {n C Z | n is odd} and B = {n C Z | n^2 - 1 mod 4}. Prove that A is included in B.

Question 1179159: Let A = {n C Z | n is odd} and B = {n C Z | n^2 - 1 mod 4}. Prove that A is included in B.
Answer by ikleyn(52810) (Show Source): You can put this solution on YOUR website!
.

The problem condition is written INCORRECTLY.

The correct form is THIS:

Let A = {n C Z | n is odd} and B = {n C Z | n^2 - 1 = 0 mod 4}. Prove that A is included in B.

If you confirm that you agree with my editing, then I will solve it to you.

The best way is to RE-POST the problem to the forum in the CORRECT FORM.

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Do not forget to submit your "THANKS" to me for pointing a deficiency in your post.

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