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Docs for empty macros
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@ -1,5 +1,5 @@
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#LyX 2.4 created this file. For more info see https://www.lyx.org/
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\lyxformat 614
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\lyxformat 616
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\begin_document
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\begin_header
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\save_transient_properties true
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@ -137,6 +137,7 @@
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\use_default_options false
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\begin_modules
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subequations
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logicalmkup
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\end_modules
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\maintain_unincluded_children no
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\language english
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@ -233,6 +234,7 @@ subequations
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\html_be_strict false
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\docbook_table_output 0
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\docbook_mathml_prefix 1
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\author -584632292 "Richard Kimberly Heck"
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\author -563046850 "Jean-Marc LASGOUTTES"
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\author 177693 "x"
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\author 5863208 "ab"
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@ -37676,6 +37678,21 @@ A=B
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\end_inset
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\change_inserted -584632292 1686503213
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\end_layout
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\begin_layout Standard
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\change_inserted -584632292 1686503316
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As is obvious,
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commands defined in the preamble do not display `nicely' in LyX itself.
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Most such commands can be defined in LyX using `math macros',
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however,
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which we are about to explain,
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and these do display nicely.
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\change_unchanged
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\end_layout
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\begin_layout Subsection
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@ -38667,6 +38684,75 @@ Eating From The Right
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\end_inset
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\change_inserted -584632292 1686503329
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\end_layout
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\begin_layout Subsection
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\change_inserted -584632292 1686503341
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Math Macros for External Commands
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\end_layout
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\begin_layout Standard
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\change_inserted -584632292 1686503466
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Sometimes,
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you may need to use a LaTeX package which defines a math command that is not natively supported in LyX.
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This is easy enough to do:
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Just include the package in the preamble and type out the command in math.
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As with commands defined in the preamble,
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however,
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the display in LyX will not be `nice'.
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\end_layout
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\begin_layout Standard
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\change_inserted -584632292 1686503786
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As of LyX 2.4,
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this problem has been solved.
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Just define a math macro with empty LaTeX slot!
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The LyX part will be used for display,
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but no corresponding LaTeX will be output.
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For example,
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the
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\begin_inset Flex Code
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status collapsed
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\begin_layout Plain Layout
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\change_inserted -584632292 1686503714
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godelnum.sty
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\change_unchanged
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\end_layout
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\end_inset
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package defines a Godelnum macro that puts a single argument into corner quotes.
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To get a nice LyX display of this macro,
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just do:
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\end_layout
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\begin_layout Standard
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\change_inserted -584632292 1686503742
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\begin_inset FormulaMacro
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\newcommand{\Godelnum}[1]{}
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{\ulcorner#1\urcorner}
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\end_inset
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\end_layout
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\begin_layout Standard
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\change_inserted -584632292 1686503753
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The same trick,
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of course,
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can be used for commands defined in the preamble.
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\change_unchanged
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\end_layout
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\begin_layout Section
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