Two relations R and R' are said to be ordinally similar, if a one-one relation holds between the members of the two fields of R and R', such that if x and y are any two members of the field of R, such that x has the relation R to y, and if x' and y are the **correlates** in the field of R' of x and y, then in all such cases x has the relation R' to y', and conversely, interchanging the dashes on the letters, i.e.

But after the establishment of the Inquisition" heresy and sorcery were regarded as **correlates**, like two agencies resting on and serviceable to the demoniacal powers, and were therefore treated in the same way as offences to be punished with torture and the stake "(Kurtz, Church History, ii.

The general rule which **correlates** this polymorphic change is that its direction changes at a given temperature.