Surveys of religious leaders indicate that only a small percentage are concerned that the existence of extraterrestrial intelligence might fundamentally contradict the views of the adherents of their religion.

Apparently, Green had more than one time machine already, and its existence contradicted Joe's version of their situation.

A 1999 review of the physics of complementary therapies states that the existence of a "bio-field" or "bio-energetic field" directly contradicts principles of physics, chemistry, and biology.

The existence of strong partition cardinals contradicts the axiom of choice.

The existence of the BBC also contradicts the idea that good British programmes can be made in the market place with commercial funding.

The existence of materialization would contradict the generally accepted law of conservation of energy.

Hence, the very existence of discrimination at the long run, contradicts the claim that the markets function well and punish the discriminators.

In either case the existence of this arc contradicts the assumed construction of the set , and the contradiction proves that each partition set is maximal.

The existence of one individual may contradict the existence of another.

Vincent's existence in the film contradicts the literary universe, as Puzo's original novel stated that Lucy never bore a child with Sonny.