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I was trying to eliminate the vertical space before and after the title of a section by using the titlesec package and the command \titlespacing*{\section}{0pt}{0pt}{0pt}, but it works only in eliminating the vertical space after the section title. Before the section title there still is a portion of double space. I've searched the database and didn't find a solution.

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Do you use the setspace package and \doublespacing? A a minimal working example (MWE) would be helpful. – lockstep Jan 8 '12 at 13:40
No, I don't. I use Lyx 2.0.2 with default settings. In the preamble I have \usepackage{fontspec} \usepackage{xunicode} \usepackage{xltxtra} \date{} \usepackage[compact]{titlesec} \titlespacing*{\section}{0pt}{*0}{0pt} – chimil Jan 8 '12 at 13:43
Now I clicked to see the complete source and setspace appears with \onehalfspacing. But the space before the section title is clearly bigger than the one after. – chimil Jan 8 '12 at 13:47
Check your PDF (or DVI) ouutput file -- perhaps the problem is limited to LyX's display. – lockstep Jan 8 '12 at 13:47
I've checked it. The same problem in the PDF xetex output. – chimil Jan 8 '12 at 13:50
up vote 4 down vote accepted

Don't switch to \normalsize inside the argument of \section; use titlesecs \titleformat macro instead.






The LOT hypothesis

\section*{The Regress Argument}



enter image description here

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Thank you so much, I just had to add titleformat{\section}{\normalfont\bfseries}{\thesection}{1em}{} to my preamble and it solved the problem, although I couldn't edit the source code in LyX and the \normalsize setting is still there. But it works this way. – chimil Jan 8 '12 at 14:20

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