What is proof?
where/when/how was it created?
How is it used?
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I did a lot of research for this :)

Step-by-step explanation:

Proof is reasoning that an equation or expression works. It is used in Geometry and Calculus. It is likely first created as an ancient greek mathematics reasoning. Thales was one of the first text books featuring geometry proof(624–546 BCE). It is used to prove that the equation matches.

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more