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Equality (mathematics)
In mathematics, equality is a relationship between two quantities or, more generally two mathematical expressions, asserting that the quantities have the same value, or that the expressions represent the same mathematical object. The equality between ''A'' and ''B'' is written ''A'' = ''B'', and pronounced ''A'' equals ''B''. The symbol "=" is called an "equals sign".
==Etymology==
The etymology of the word is from the Latin ''aequālis'' (“equal”, “like”, “comparable”, “similar”) from ''aequus'' (“equal”, “level”, “fair”, “just”).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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