User's Manual

145
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in eect making
the program proprietary. To prevent this, we have made it clear
that any patent must be licensed for everyone’s free use or not
licensed at all.
The precise terms and conditions for copying, distribution and
modication follow.
Terms & conditions for copying, distribution, & modication
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
 
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provided that you conspicuously and appropriately

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