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math mode - How do I typeset vertical and horizontal lines inside a matrix? - TeX - LaTeX Stack Exchange
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rules - How can I draw a horizontal line spanning only some of the table cells? - TeX - LaTeX Stack Exchange
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spacing - Problem drawing horizontal line above two columns, line runs through column - TeX - LaTeX Stack Exchange
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alignment - Vertical Centered Horizontal Line on the same line as text? - TeX - LaTeX Stack Exchange
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spacing - Problem drawing horizontal line above two columns, line runs through column - TeX - LaTeX Stack Exchange
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