# Reply To: Representing an augmented matrix in Nemeth braille

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Thank you for this response, Donald.

My effort to be succinct may have caused confusion. In set notation, the 1256 indicator does not, in my experience, normally appear between the members of a set but rather as an abbreviation for the phrase "such that" that separates a variable expression from the defining condition for the set. In English print, the expression "{x | x is an integer between 1 and 10}" would be read as "the set of all x such that x is an integer between 1 and 10". The vertical line | stands for the phrase "such that". This instance of vertical line symbol | should have extra space on either side of it. (Nemeth: page 136; page 143, section 145; page 144, examples 13 and 14.)