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by definition, a hypothesis has not been verified at all; and the following deleted sentence repeats information already stated; further clarifications
Scientific laws summarize the results of experiments or observations, usually within a certain range of application. In general, the accuracy of a law does not change when a new theory of the relevant phenomenon is worked out, but rather the scope of the law's application, since the mathematics or statement representing the law does not change. As with other kinds of scientific knowledge, laws do not have absolute certainty (as mathematical [[theorems]] or [[Identity (mathematics)|identities]] do), and it is always possible for a law to be contradicted, restricted, or extended by future observations. A law can usually be formulated as one or several statements or [[equation]]s, so that it can be used to predict the outcome of an experiment, given the circumstances of the processes taking place.
 
Laws differ from [[hypotheses]] and [[postulates]], which are proposed during the [[Scientific method|scientific process]] before and during validation by experiment and observation. [[Hypotheses]] and [[postulates]] are not laws since they have not been verified to the same degree and may not be sufficiently general, although they may lead to the formulation of laws. A law is a more solidified and formal statement, distilled from repeated experiment. Laws are narrower in scope than [[Scientific theory|scientific theories]], which may containentail one or several laws.<ref>{{cite web|url=http://ncse.com/evolution/education/definitions-fact-theory-law-scientific-work |title=Definitions from |publisher=the NCSE |date= |accessdate=2019-03-18}}</ref> Science distinguishes a law or theory from facts.<ref>{{cite journal |url=http://dels.nas.edu/resources/static-assets/materials-based-on-reports/reports-in-brief/role_of_theory_final.pdf | title=The Role of Theory in Advancing 21st Century Biology: Catalyzing Transformative Research |publisher = The National Academy of Sciences |year =2007 |journal=Report in Brief |}}</ref> Calling a law a [[scientific fact|fact]] is [[ambiguous]], an [[overstatement]], or an [[equivocation]].<ref name=gouldfact>{{cite journal | url = http://www.stephenjaygould.org/library/gould_fact-and-theory.html | first = Stephen Jay | last = Gould | authorlink = Stephen Jay Gould | title = Evolution as Fact and Theory | journal = Discover | volume = 2 | issue = 5 | date = 1981-05-01 | pages = 34–37}}</ref> Although theThe nature of a scientific lawlaws ishas abeen much questiondiscussed in [[philosophy]], andbut althoughin scientific laws describe nature mathematically,essence scientific laws are practicalsimply empirical conclusions reached by the [[scientific method]]; they are intended to be neither laden with [[ontology|ontological]] commitments nor statements of logical [[wikt:absolute#Noun|absolutes]].
 
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