Now, this quantity, the right side of the equation, is going to be a positive value only if this quantity here, the delta S of the system, is greater than this quantity here. If this is greater than this, then when we take the difference of these two values, this will be a positive value. So we see that according to the second law of thermodynamics, in any real biological process, the entropy of the universe must always increase as per this equation. Therefore, from equation three, we see that if this delta s universe is to be positive, then what that means is this quantity. So the delta S of the system must be greater than this quantity, this term here, because if this is a greater number than this, then the difference will be a positive value. So let's call this inequality inequality six.