Find all ring homomorphism from ℤ×ℤ to ℤ
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Homomorphism Mathematics. An into map between two sets that preserves relations between elements.
There are exactly 9 ring homomorphisms. Here they are:
My apologies; the previous post is nonsense. Somehow, I thought the integer solutions to $x^2=x$ were 0, 1 and -1! Here's the corrected version:
I hope this is the last correction. This question is making me feel kind of stupid. Obviously, rings are not my forte.
Thanks Dear...This last try is best & correct