Proof step
Geometric basis map (elementary)
Image under a basis map u^k -> P_k A013611
- Concludes
- basis_map_A013609 of basis_map_A013609 of Triangle of coefficients in expansion of (1+4x)^n.
- Premises
- basis_map_A013611 of Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*1^j.
sequence: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]
- basis_map_A013611 of Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*1^j.
- Theorem
- polytool ?
- Checked
- polytool replayed · Lean not attempted
Technical details
- Step id
e-a1ab9f6dbc9c9996· 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-2569a5f20799bcd9452ef29dfef3b4054852d6cff4d5d2f1332d2c19448e7fec504, 6,859 bytes (1,390 compressed); downloadpolytool replayed the certificate when the step was written.- Cited by
n-b6b8b7173a216e50(real_rooted)n-b6b8b7173a216e50(one_signed_coefficients)n-b6b8b7173a216e50(hadamard_kernel)