proof ch:14-calculus-of-variations@proof-6

open in the book · parts/02-mathematical-methods/14-calculus-of-variations.tex:481

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proof : ch:14-calculus-of-variations@proof-6proofproposition 16.16: Stationarity is necessary16.16definition 16.15: Variation; the first variation16.15definition 16.13: Weak and strong extrema16.13lemma 7.33: Fermat: interior extremum7.33theorem 16.22: Euler–Lagrange16.22theorem 16.51: Legendre's necessary condition16.51

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proves Stationarity is necessary declared parts/02-mathematical-methods/14-calculus-of-variations.tex:481