 The most fundamental puzzle about identity is the problem of change. Suppose we have two photographs of a dog, Oscar. In one, \(A\), Oscar is a puppy, in the other, \(B\), he is old and gray muzzled. Yet we hold that he is the same dog, in, it appears, direct violation of LL. More explicitly, \(B\) is a photograph of an old dog with a gray muzzle; \(A\) is a photograph of a young dog without a gray muzzle. \(A\) and \(B\) are photographs of the same dog. But according to LL, if the dog in \(B\) has a property (e.g., having a gray muzzle) that the dog in \(A\) lacks, then \(A\) and \(B\) are not photographs of the same dog. Contradiction.