Source · Paper

Razborov–Rudich · Natural proofs

PublishedPublication date 1994
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Overview

The precise statements and locators cited in this P versus NP research record.

Published author exposition or original paper.

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Passage 1 · OpenMath paraphrasePermalink

§2.2 (natural properties), p. 7; hardness definition and Theorem 4.1, p. 15

If a polynomial-size pseudorandom generator G_k: {0,1}^k → {0,1}^{2k} has hardness H(G_k) ≥ 2^{k^ε} for some fixed ε > 0 and all sufficiently large k, then no P-natural property useful against P/poly exists.

Passage details

Passage ID: pnp-entry-natural-proofs:v1

Source item: natural-proofs

Source record: pnp-rr@STOC-1994-author-paper

Used in

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P versus NP →

Problem publication v14

The natural-proofs barrier is conditional →

Source assessment

Proved

Established implication or scoped theorem in cited mathematics

A conditional barrier for this precise kind of circuit-lower-bound method; not for all mathematical proofs.

Observed Oct 10, 2026

Problem context · 2 citations

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Razborov–Rudich · Natural proofs — proof text ↗

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Resource revision: STOC-1994-author-paper

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493cd619b123213f23de32f5075f34d30c563cbd562e025c99b0207568bc1c58

Credits

Recorded authorship

Alexander Razborov · Steven Rudich

Alexander Razborov; Steven Rudich

AI involvement not reported

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  1. STOC-1994-author-paper · selectedObserved Oct 10, 2026 · used in current publications

    Razborov–Rudich · Natural proofs

Record details
Source ID
pnp-rr
Record ID
pnp-rr@STOC-1994-author-paper
Recorded title
Razborov–Rudich · Natural proofs
Revision
STOC-1994-author-paper
Observed
Oct 10, 2026
Source updated
Not recorded
Content SHA-256
493cd619b123213f23de32f5075f34d30c563cbd562e025c99b0207568bc1c58
Update method
Manual primary-source check; changes require a new source version and staff publication.
Identifier policy
Source URL and exact theorem/section locator; no inferred identity merge.
Check interval
30 days
Rights
metadata-link
License
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