It is believed unlikely that a short, simple proof exists.

Then the hands brought together, face up, an offering of the simple proof.

This identity is used in a simple proof of Markov's inequality.

If any one wants a simple proof of this, it is easy to find.

It would only have taken a word and the simple, undeniable proof.

This is perhaps the simplest known proof, requiring the least mathematical background.

In high school we see studies that say two-thirds of the students taking geometry can do only simple proofs.

Originally called Dyson, the game started as a simple single proof of concept level.

It is a simple and easy-to-see proof of the Earth's movement.

Is there a simple proof that no antimagic square of order 3 exists?