Hello all together,
after a test I have made with my LyX (version 2.1.0 on Windows 7) it is
so, that all three em dashes are shown in a PDF file generated with
pdflatex. The em dash, which is generated by three times press of the
hyphen and the em dash, that can be generated under Insert -> special
characters -> Symbols -> General Punctuation -> position 7 seems to be
identical to each other, while the em dash at position 8 is a little bit
longer and a little bit fatter. I do not know, why.
Best regards
Marcus
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