What's the difference between contraposition and counterposition?

Contraposition

Definition:

(n.) A placing over against; opposite position.
(n.) A so-called immediate inference which consists in denying the original subject of the contradictory predicate; e.g.: Every S is P; therefore, no Not-P is S.

Example Sentences:

(1) In contraposition with the effect on male stimulation, progesterone did not increase the reactivity to cervicovaginal stimulation, as measured by the percent incidence of lordosis.
(2) The similitude between ageing and hypertension, the contraposition that is seen in youngsters, and other metabolic alterations test this model of winkessel.
(3) In the hot plate test the three GABAergic compounds antagonized the analgesic effects of pentazocine in contraposition with previous results indicating that morphine-induced analgesia is increased by pretreatment with those agents.

Definition:

Example Sentences:

(1) Comparisons were made between the following groups: animals with subtotal resection of the small intestine and counterpositioning of a segment of the small intestine, myotomy, isoperistaltic segment, and animals with removal of the small intestine without delayed passage time, and a group of healthy non-operated controls.