Before backfilling the trench, the contractor inspected the damp proofing to ensure the foundation would be protected from rising moisture.

She proof-reads every chapter of the report before submission to ensure accuracy.

Concluding that extraterrestrial life does not exist simply because there is no definitive evidence is a negative proof and a logical fallacy.

We installed a rabbit-proof fence around the vegetable garden to protect the carrots.

Before the final print run, the designer reviewed the page proof for typographical errors.

Before bottling, the cellar master compared each sample to proof spirit to verify the alcohol content.

These ceramic mugs are labeled dishwasher proof, so you can clean them without worrying about damaging the glaze.

The philosopher presented a new ontological proof to support the existence of a necessary being.

In his dissertation, he compiled several negative proofs to demonstrate that the proposed algorithm fails on certain edge cases.

The researchers compiled multiple proofs positive demonstrating the effectiveness of the new vaccine.