A = A is a logical law that states that an identity is equal to itself, and that if an identity is not equal to itslef, it is a contradiction, and must not exist or must be rethought. That's a bit of an oversimplification and not the best explanation, but it's the general idea.
Now, from wikipedia:
Now, from wikipedia:
In 2002 Jonathon Keats held a petition drive to pass 'A = A' as statutory law in Berkeley, California. Specifically, the proposed law stated that, "every entity shall be identical to itself". Any entity caught being unidentical to itself was to be subject to a fine of up to one tenth of a cent. The law did not pass.[3]