From the above lemma it follows that if (x, y, z) is a primitive Pytagorean
triple, then z and one of x and y are odd.
Now, we will give the following lemma which will be needed during the
proof of the main theorem
.
From the above lemma it follows that if (x, y, z) is a primitive Pytagorean
triple, then z and one of x and y are odd.
Now, we will give the following lemma which will be needed during the
proof of the main theorem
.