Proof step
Geometric basis map (elementary)
Image under a basis map u^k -> P_k A013611
- Concludes
- shift_x_plus_one of basis_map_A013609 of Triangle of coefficients in expansion of (1+4x)^n.
- Premises
- basis_map_A013609 of Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*1^j.
sequence: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]
- basis_map_A013609 of Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*1^j.
- Theorem
- polytool ?
- Checked
- polytool replayed · Lean not attempted
Technical details
- Step id
e-eab328c98801dd53· JSON- Operation
- Image under a basis map u^k -> P_k
{ "map": "A013611", "operation": "basis_map" } - Claims
{ "claim": "real_rooted", "from_index": 0, "region": { "upper": { "closed": true, "value": "0" } } }- Certificate
basis_map, SHA-2563e35e24167eff66ed3c16addcbf3250dc113afee551df4d4695edd6f297d0141, 6,860 bytes (1,390 compressed); downloadpolytool replayed the certificate when the step was written.- Cited by
n-e8edca1dfa93add7(one_signed_coefficients)n-e8edca1dfa93add7(hadamard_kernel)n-e8edca1dfa93add7(real_rooted)