I am currently writing a book in Italian using LyX and I use


in the preamble. However, I need to write a chapter of this book in a different language. How can I change the hyphenation only for this chapter to English?


Insert an ERT using \selectlanguage{english} and revert back using the inverse. From the babel documentation (section 1 The user interface, p 4):

When a user wants to switch from one language to another he can do so using the macro \selectlanguage. This macro takes the language, defined previously by a language definition file, as its argument. It calls several macros that should be defined in the language definition files to activate the special definitions for the language chosen.

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  • What is an ERT? – Mariano Suárez-Álvarez Feb 17 '13 at 4:14
  • @MarianoSuárez-Alvarez: In LyX this is referred to as "Evil Red Text" that inserted in the Wysiwyg LyX editor to include any LaTeX code. – Werner Feb 17 '13 at 4:25
  • Nowadays with LyX 2.0.x, ERT is called "TeX code" and the button on the toolbar looks like the "TEX" logo of this site. (A little inconsistent that hovering over such a "TeX code" field displays "ERT".) – e-birk Feb 17 '13 at 13:19

babel supports changing the hyphenrules





you can insert the two command lines into LyX with Ctrl-L also called ERT (Evil Red Text)

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  • If the language es english, hyphenrules is ok, but in general the right environment is otherlanguage*. – Javier Bezos Feb 17 '13 at 18:47

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