Source: cirosantilli/classical-limit
= Classical limit
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The idea tha taking the limit of the non-classical theories for certain parameters (<relativity> and <quantum mechanics>) should lead to the classical theory.
It appears that classical limit is only very strict for <relativity>. For <quantum mechanics> it is much more hand-wavy thing. See also: <Subtle is the Lord by Abraham Pais (1982)> page 55.