mirror of https://github.com/texmacs/doc.git
58 lines
2.5 KiB
Plaintext
58 lines
2.5 KiB
Plaintext
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<TeXmacs|1.0.5.3>
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<style|tmdoc>
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<\body>
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<tmdoc-title|Structured variants>
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When creating an environment like a theorem, an equation or a list, it
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frequently happens that one would like to change the environment <em|a
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posteriori>. This can be done using the keyboard shortcuts
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<shortcut|(variant-circulate (focus-tree) #t)> and <shortcut|(variant-circulate (focus-tree) #f)> for cycling through the list of
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<em|structured variants> of the innermost tag in a direct or inverse
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manner.
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For instance, assuming that you are inside a theorem, pressing
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<shortcut|(variant-circulate (focus-tree) #t)> several times will change the theorem into a proposition,
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a lemma, a corollary, a conjecture and back into a theorem. The
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<shortcut|(variant-circulate (focus-tree) #f)> key allows you to cycle in the inverse direction:
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theorem<nbsp><with|mode|math|<op|\<rightarrow\>>>
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conjectur<nbsp><with|mode|math|<op|\<rightarrow\>>>
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corollary<nbsp><with|mode|math|<op|\<rightarrow\>>>
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lemma<nbsp><with|mode|math|<op|\<rightarrow\>>>
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proposition<nbsp><with|mode|math|<op|\<rightarrow\>>> theorem.
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In the case of mathematical formulas, the <shortcut|(variant-circulate (focus-tree) #t)> shortcuts
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allows you to change an inline formula like
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<with|mode|math|a<rsup|2>+b<rsup|2>=c<rsup|2>> into a displayed formula
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like
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<\equation*>
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a<rsup|2>+b<rsup|2>=c<rsup|2>
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</equation*>
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while taking care of potential ``trailing spaces and punctuation signs''.
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<TeXmacs> also provides the <shortcut|(numbered-toggle (focus-tree))> shortcut for turning numbered
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environments into unnumbered environments and <em|vice versa>. This works
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for most common environments like theorems, remarks, tables, equations,
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etc. Notice that <shortcut|(numbered-toggle (focus-tree))> also turns an unnumbered itemize environment
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into an enumeration and <em|vice versa>, whereas <shortcut|(variant-circulate (focus-tree) #t)> allows
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you to cycle between the available kinds of list items (bullets, dashes,
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arrows, <abbr|etc.>).
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<tmdoc-copyright|1998--2005|Joris van der Hoeven>
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<tmdoc-license|Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU Free
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Documentation License".>
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</body>
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<\initial>
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<\collection>
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<associate|language|english>
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</collection>
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</initial>
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