Editing Extreme value theorem (section)

==History==
The extreme value theorem was originally proven by [[Bernard Bolzano]] in the 1830s in a work ''Function Theory'' but the work remained unpublished until 1930. Bolzano's proof consisted of showing that a continuous function on a closed interval was bounded, and then showing that the function attained a maximum and a minimum value.  Both proofs involved what is known today as the [[Bolzano&ndash;Weierstrass theorem]].<ref>{{cite journal |first1=Paul |last1=Rusnock |first2=Angus |last2=Kerr-Lawson |title=Bolzano and Uniform Continuity |journal=Historia Mathematica |volume=32 |issue=3 |year=2005 |pages=303–311 |doi=10.1016/j.hm.2004.11.003 |doi-access= }}</ref>