logic comparision
=: Return true if both inputs equal each other.
≠ : Return true if both inputs are not equal to each
other.
<: Return true if the first input is smaller than the
second input.
≤ : Return true if the first input is smaller than or
equal to the second input.
>: Return true if the first input is greater than the
second input.
≥ : Return true if the first input is greater than or
equal to the second input.