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.

Algebra ->  Proofs -> 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.      Log On


   

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(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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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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