invariant section - Wiktionary, the free dictionary (original) (raw)

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• 1 English
  • 1.1 Alternative forms
  • 1.2 Etymology
  • 1.3 Noun
    * 1.3.1 Usage notes
  • 1.4 Further reading

From Wiktionary, the free dictionary

• (programming) INVARIANT section
• (law): Coined by Free Software Foundation in free software copyright licenses.

invariant section (plural invariant sections)

1. (law) Something that must not be removed or modified during redistribution.
   I had to include the GNU Manifesto, as it was part of an invariant section.
2. (mathematics) A section that will not vary through changing state.
3. (programming) A property that does not change through a program's execution.

• (mathematics): Often used in the form X-invariant section, implying a section that remains constant while X is being changed.
• Text of the GNU Free Documentation License possibly first legal use.

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