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In the broadest sense of the term, to prove something means to demonstrate or test its validity by evidence or argument. In this loose sense, scientific theories can be proven.. But normally scientists don't say a theory is proven, because they use that term to refer to the result of a logical deduction. In this rigorous sense, scientific theories can never be proven; they can only be confirmed. Only mathematical theorems can be proven.
DEFINITION of 'Proven Reserves'. After an oil exploration firm conducts a seismic survey on a piece of land, it obtains the proven and probable reserves in that area. Proven reserves are those which have an over 90% chance of being present.REAKING DOWN 'Proven Reserves'. If a reserve is considered to be proven, this does not guarantee a successful operation. After the total reserves of a piece of land are determined, the oil company makes a decision whether or not to pursue drilling.