The Plan 9 software is provided under the terms of the
Lucent Public License, Version 1.02, reproduced in the
file /lib/legal/lpl, with the following notable exceptions:

1. No right is granted to create derivative works of or
   to redistribute (other than with the Plan 9 Operating System)
   the screen imprinter fonts identified in subdirectory
   /lib/font/bit/lucida and printer fonts (Lucida Sans Unicode, Lucida
   Sans Italic, Lucida Sans Demibold, Lucida Typewriter, Lucida Sans
   Typewriter83), identified in subdirectory /sys/lib/postscript/font.
   These directories contain material copyrights by B&H Inc. and Y&Y Inc.

2. The printer fonts identified in subdirectory /sys/lib/ghostscript/font
   are subject to the GNU GPL, reproduced in the file /lib/legal/gpl.

3. The ghostscript program in the subdirectory /sys/src/cmd/gs is
   covered by the Aladdin Free Public License, reproduced in the file
   /lib/legal/afpl.

Other, less notable exceptions are marked in the file tree with
COPYING, COPYRIGHT, or LICENSE files.