Final answer:
The equation Integral -inf to 0 = integral 0 to inf signifies the equivalence of integrals evaluated over symmetric intervals.
Step-by-step explanation:
The equation described in the question, Integral -inf to 0 = integral 0 to inf, signifies the equivalence of integrals evaluated over symmetric intervals. This is because the interval from -infinity to 0 is symmetric to the interval from 0 to infinity about the origin. In other words, the two intervals have the same values when reflected around the origin.