Real-rooted atlas

Proof step

Geometric basis map (elementary)

Image under a basis map u^k -> P_k A007318

Concludes
derivative of basis-map coefficients of Riordan array (1+2x,x(1+x)). shifted by x -> -x + 0
Premises
Theorem
polytool ?
Checked
polytool replayed · Lean not attempted
Technical details
Step id
e-bbf476210c79852a · JSON
Operation
Image under a basis map u^k -> P_k
{
  "map": "A007318",
  "operation": "basis_map"
}
Claims
{
  "claim": "real_rooted",
  "from_index": 0,
  "region": {
    "upper": {
      "closed": true,
      "value": "0"
    }
  }
}
{
  "claim": "interlacing",
  "from_index": 2,
  "kind": "weak",
  "orientation": "unordered"
}
Certificate
basis_map, SHA-256 fd42357fa0d8e8bf3eb6bf3228cf9ca748b303b5948073245e7a04c60753b380, 15,480 bytes (2,890 compressed); download
polytool replayed the certificate when the step was written.
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