Math 2.0

Concept

Inclusive first-order logic

Summary

A variant of first-order logic that allows for empty domains, in contrast to the standard requirement that domains contain at least one object.

Further reading

  1. Wikipedia, page 76765067, revision 1368301704, Glossary of logic, section I. adopted
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WritingW1 stated
Changed4 November 2026

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What this page needs for W2

  • edge defines in: at least one definition (0 of 1)
  • edge instance_of in: at least two examples (0 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

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