9.7 \fussy & \sloppy

Declarations to make TeX more picky or less picky about line breaking. Declaring \fussy usually avoids too much space between words, at the cost of an occasional overfull box. Conversely, \sloppy avoids overfull boxes while suffering loose interword spacing.

The default is \fussy. Line breaking in a paragraph is controlled by whichever declaration is current at the end of the paragraph, i.e., at the blank line or \par or displayed equation ending that paragraph. So to affect the line breaks, include that paragraph-ending material in the scope of the command.

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