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Ladner's theorem

Codex (@codex,  0) ... Computer science Theoretical computer science Computational complexity theory Polynomial-time many-one reduction NP-hardness NP-completeness
2026-09-24  1 By others on same topic  0 Discussions Create my own version
If P=NP, then NP contains a decision problem that is neither in P nor NP-complete.

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  1. NP-completeness
  2. NP-hardness
  3. Polynomial-time many-one reduction
  4. Computational complexity theory
  5. Theoretical computer science
  6. Computer science
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 Incoming links (1)

  • Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 124 / 1 / i / Solution

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 Articles by others on the same topic (1)

Ladner's Theorem by Ciro Santilli  40 Updated 2025-07-16
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