Not every raised stroke is a quotation markSourced
Prime and double prime are distinct symbols
Prime ′ and double prime ″ resemble apostrophes or quotation marks but are distinct symbols. They have specialized uses in mathematics and other notation. Similar-looking characters on a screen do not necessarily carry interchangeable meanings.
A similar shape can belong to a different symbol.
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Prime (symbol) · Wikimedia contributors
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Reviewed: 2026-10-05