Proof step e-e55cd7ac2c40d500

theorem_check three_term_recurrence → concludes about One half of odd-numbered entries of even-numbered rows of Pascal's triangle A007318. JSON

Theorem

Three-term recurrence criterion [Sze39, §3.3; Fav35] polytool ?

Operation

Theorem check of the node's own rule

{
  "operation": "theorem_check",
  "theorem": "three_term_recurrence"
}

Premises

None: this step is a direct theorem check.

Claims

• { "claim": "real_rooted", "from_index": 0, "region": {} }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: theorem_check, SHA-256 75cedf04cd9f4504bf4865b4d82a11b1835d6b49d9cacd523e1a2c134f62cb9a, 2,697 bytes (1,050 compressed); download JSON

Cited by

• n-2245b35ec7cd4857 (real_rooted)

References

1. [Fav35] Jean Favard. Sur les polynômes de tchebicheff. C. R. Acad. Sci. Paris, 200:2052–2053, 1935.
2. [Sze39] G. Szegő. Orthogonal Polynomials. Colloquium publications, American Mathematical Society, 1939. doi:10.1090/coll/023