Talk:If Definite Integral of a(x)h(x) vanishes for any C^0 h(x) then C^0 a(x) vanishes
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Other names
In Wikipedia it is called Fundamental lemma of the calculus of variations.
In Encyclopedia of Mathematics it is called Du Bois-Reymond lemma --Hbghlyj (talk) 16:42, 23 March 2024 (UTC)