{"id":"e-81aa6611c032ec70","operation":{"operation":"theorem_check","theorem":"liu_wang_derivative_lag"},"operation_detail":"liu_wang_derivative_lag","conclusion_id":"n-d5c14b9fec875ecc","premise_count":0,"theorem":"L. L. Liu and Y. Wang, A unified approach to polynomial sequences with only real zeros, Adv. in Appl. Math. 38 (2007) 542-560, Theorem 2.1 with the interlacers f' and the lag row (strict form, as in the derivative-lag theorems of the RealRooted library, https://github.com/PerAlexandersson/RealRooted), with nonnegativity of the coefficients replaced by an exact induction keeping every root in (-inf, 0)","lean_route":"sign","lean_declarations":["RealRooted.threeTerm_interlaces_of_nonnegCoeffs","RealRooted.LiuWang.strictInterl_nonpos_lag_sequence"],"certificate_hash":"f0452d33ef644f7119d9e020899908b49b2f9d43695532b22d3b99037c98f064","verification_polytool":"replayed","verification_lean":"not_attempted","certificate_kind":"theorem_check","certificate_raw_size":4840,"certificate_compressed_size":1425,"conclusion_name":"Riordan array (1/(1-2*x), x*(1+x)/(1-2*x)).","claims":[{"claim":"real_rooted","from_index":0,"region":{"upper":{"closed":false,"value":"0"}}},{"claim":"interlacing","from_index":1,"kind":"strict","orientation":"previous_interlaces_next"}],"premises":[],"cited_by":[{"node_id":"n-d5c14b9fec875ecc","claim":"interlacing"},{"node_id":"n-d5c14b9fec875ecc","claim":"real_rooted"},{"node_id":"n-d5c14b9fec875ecc","claim":"one_signed_coefficients"},{"node_id":"n-d5c14b9fec875ecc","claim":"hadamard_kernel"}]}