"Hamming distance" meaning in English

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  "etymology_text": "Named after American mathematician Richard Hamming (1915–1998).",
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        "Given two strings of equal length, the number of positions at which the corresponding symbols differ; it therefore indicates the minimum number of substitutions required to change one string into the other."
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        "(information theory) Given two strings of equal length, the number of positions at which the corresponding symbols differ; it therefore indicates the minimum number of substitutions required to change one string into the other."
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        "(information theory) Given two strings of equal length, the number of positions at which the corresponding symbols differ; it therefore indicates the minimum number of substitutions required to change one string into the other."
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