= 0 + 0 + 0 + ...
  = (1 - 1) + (1 - 1) + (1 - 1) + ...
  = 1 - 1 + 1 - 1 + 1 - 1 + ...
  = 1 + (-1 + 1) + (-1 + 1) + (-1 + 1) + ...
  = 1 + 0 + 0 + 0 + ...
  = 1

Ubaldus, a Catholic Saint, felt that this proved the existence of God because "something has been created out of nothing."