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| | Theory Essay @ NaturalResearch.org (Natural Research) (Site not responding. Last check: 2007-11-07) |
 | | In science, a theory is a proposed description, explanation, or model of the manner of interaction of a set of natural phenomena, capable of predicting future occurrences or observations of the same kind, and capable of being tested through experiment or otherwise verified through empirical observation. |
 | | In this sense, a theory is a systematic and formalized expression of all previous observations that is predictive, logical and testable. |
 | | A theory in this sense is a set of statements in a formal language, which is closed upon application of certain procedures called rules of inference. |
| www.naturalresearch.org /encyclopedia/Theory (1876 words) |
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