This proof shows that all horses are the same colour.

The proof showed that the machine is equivalent to a variant of a tag system already known to be universal.

The proof of the operation's success showed on the face of the child, whose lips instantly turned pink.

"The proof will show Jim Kelly had nothing to do with the injuries."

The only questionable element is the existence of machine D, which this proof will eventually show to be impossible.

A recent payroll stub or other proof that shows your current gross income.

A proof shows that one statement, the conclusion, follows from the assumptions.

The proof has shown that a set is in .

For example, a simple proof would show that at least two angles of an isosceles triangle are equal.

This proof shows that the Turan graph has the maximum number of edges.