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Proof by common knowledge.


Proof by Common knowledge, is proof that is admitted of a fact that witnesses have not seen with their own eyes, but have general knowledge of based on public notoriety, as when proof is admitted of the fact that a man at the time of his death had wealth of one hundred thousand crowns; it is not required that the witnesses state that they had seen the crowns at the time of the man’s death; they are simply required to state that they believed the man to have wealth of one hundred thousand crowns, & that he was known as such.

Source: Diderot, Denis et Jean le Rond d'Alembert, "Proof by common knowledge, in l'Encyclopédie, ou Dictionnaire Raisonné des Sciences, des Arts et des Métiers" (Paris: Briasson et autres, n.d.), tome XIII, page 356.

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