**Technology / Home Audio / Nyquists Theorem:** This states that a sound must be sampled at at least twice its highest analog frequency in order to extract all of the information from the bandwidth and accurately represent the original acoustic energy. In practice, sampling at slightly more than twice the frequency will make up for imprecisions in filters and other components used for the conversion.

**Theorem Adjective Synonyms**: hypothesis, proposition, assumption, conjecture, thesis, postulate

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Business / Finance / Separation Theorem: Theory that the value of an investment to an individual is not dependent on consumption preferences. That is, investors will want to accept or reject the same investment projects by using the NPV rule MORE

Business / Finance / Spot Futures Parity Theorem: Exchange rate on currency for immediate delivery. Related: Forward exchange rate. MORE

Business / Finance / Two-Fund Separation Theorem: Black's zero-beta version of the capital asset pricing model. MORE