The following argument, that 0 = 1, is incorrect. Describe the error.

 0 = 0 + 0 + 0 + ··

    = (1 - 1) + (1 − 1) + (1 - 1) + ···

    = 1 + (-1 + 1) + (−1 + 1) + ...

    = 1 + 0 + 0 +.

    = 1
.