Yes, especially with more complex formulas. It can help to check your answers and reassure you that you do not have any errors. You should use the same data to calculate the formula on and see if you get the same result. Then check both formulas carefully, as it may be your proof formula that is wrong, not the main formula.
To double-check your answers. If both formulas, derived from data different ways, display the same answer, it helps to assure you did not make a mistake.
Debugging or auditing.ProofreadingEditing
A typical football helmet is not bullet proof but someone could create a bullet proof football helmet.
proof load testing is to try to find the % at which the equipment can lift over the safety working load.
external evidence that the given speakers do not create themselves.
Explosive proof clothing
Yes, El Castillo Chichen Itza is earthquake-proof. I am not 100% sure why but I am google-ing it as I have to create an earthquake-proof structure. :P
to show proof or demonstrate how did they do it
Yes, the marine gps chartplotter equipment is water proof. Since marines are basically always working in the water, the product has to be water proof.
Once you familiarize yourself with the basic axioms and theorems of geometry, you will be able to see how they apply to the proof of any particular problem that you may be working on.
you can't it's impossible
How Do They Do It - 2006 Create Artificial Reefs Earthquake Proof Buildings Run Car on Rocket Fuel 6-1 was released on: USA: 10 August 2009
I am working on the same exact proof right now and i am lost