Granica korekcji błędów

Error correction limit : the maximum number of errors that a block code can correct.
To correct every single error, , as an error pattern added to a code word is uniquely correctable if the resulting redundant word v is closer to than any other word (5.1.6). If , then single errors added to these two words may result the same redundant word v .
To correct all errors up to ,
It could be proved, that a block code of the given can jointly correct or less errors and at the same time detect or less errors, if
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