Current library: Alpha v34, 4,223 checked-use theorems; Stable remains 432. Historical first admissions, original proof editions, and non-admitted aliases are preserved. Exact original first-admission records.
Exact expanded first-order arithmetic statement
forall b c t l. exists z. ((exists ff_value_hd_only. (exists ff_u_hd_only_pair ff_v_hd_only_pair ff_d_hd_only_pair ff_e_hd_only_pair. ((((((exists fs_h_ph_hd_only_pair_body_value_start. fs_h_ph_hd_only_pair_body_value_start + S (0) = S ((S (0)) * ff_v_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_value_start. ff_u_hd_only_pair = fs_q_ph_hd_only_pair_body_value_start * S ((S (0)) * ff_v_hd_only_pair) + (0))) /\ ((((exists fs_h_ph_hd_only_pair_body_value_terminal. fs_h_ph_hd_only_pair_body_value_terminal + S (ff_value_hd_only) = S ((S (l)) * ff_v_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_value_terminal. ff_u_hd_only_pair = fs_q_ph_hd_only_pair_body_value_terminal * S ((S (l)) * ff_v_hd_only_pair) + (ff_value_hd_only))) /\ forall ff_i_ph_hd_only_pair_body_value_steps. (exists ph_bound_hd_only_pair_body_value_steps. ph_bound_hd_only_pair_body_value_steps + S ff_i_ph_hd_only_pair_body_value_steps = l) -> exists ff_coefficient_ph_hd_only_pair_body_value_steps ff_previous_ph_hd_only_pair_body_value_steps ff_current_ph_hd_only_pair_body_value_steps. ((((exists fs_h_ph_hd_only_pair_body_value_steps_coefficient. fs_h_ph_hd_only_pair_body_value_steps_coefficient + S (ff_coefficient_ph_hd_only_pair_body_value_steps) = S ((S (ff_i_ph_hd_only_pair_body_value_steps)) * c)) /\ exists fs_q_ph_hd_only_pair_body_value_steps_coefficient. b = fs_q_ph_hd_only_pair_body_value_steps_coefficient * S ((S (ff_i_ph_hd_only_pair_body_value_steps)) * c) + (ff_coefficient_ph_hd_only_pair_body_value_steps))) /\ ((((exists fs_h_ph_hd_only_pair_body_value_steps_before. fs_h_ph_hd_only_pair_body_value_steps_before + S (ff_previous_ph_hd_only_pair_body_value_steps) = S ((S (ff_i_ph_hd_only_pair_body_value_steps)) * ff_v_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_value_steps_before. ff_u_hd_only_pair = fs_q_ph_hd_only_pair_body_value_steps_before * S ((S (ff_i_ph_hd_only_pair_body_value_steps)) * ff_v_hd_only_pair) + (ff_previous_ph_hd_only_pair_body_value_steps))) /\ ((((exists fs_h_ph_hd_only_pair_body_value_steps_after. fs_h_ph_hd_only_pair_body_value_steps_after + S (ff_current_ph_hd_only_pair_body_value_steps) = S ((S (S ff_i_ph_hd_only_pair_body_value_steps)) * ff_v_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_value_steps_after. ff_u_hd_only_pair = fs_q_ph_hd_only_pair_body_value_steps_after * S ((S (S ff_i_ph_hd_only_pair_body_value_steps)) * ff_v_hd_only_pair) + (ff_current_ph_hd_only_pair_body_value_steps))) /\ ff_current_ph_hd_only_pair_body_value_steps = ff_previous_ph_hd_only_pair_body_value_steps * t + ff_coefficient_ph_hd_only_pair_body_value_steps)))))) /\ (((((exists fs_h_ph_hd_only_pair_body_derivative_start. fs_h_ph_hd_only_pair_body_derivative_start + S (0) = S ((S (0)) * ff_e_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_derivative_start. ff_d_hd_only_pair = fs_q_ph_hd_only_pair_body_derivative_start * S ((S (0)) * ff_e_hd_only_pair) + (0))) /\ ((((exists fs_h_ph_hd_only_pair_body_derivative_terminal. fs_h_ph_hd_only_pair_body_derivative_terminal + S (z) = S ((S (l)) * ff_e_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_derivative_terminal. ff_d_hd_only_pair = fs_q_ph_hd_only_pair_body_derivative_terminal * S ((S (l)) * ff_e_hd_only_pair) + (z))) /\ forall ff_i_ph_hd_only_pair_body_derivative_steps. (exists ph_bound_hd_only_pair_body_derivative_steps. ph_bound_hd_only_pair_body_derivative_steps + S ff_i_ph_hd_only_pair_body_derivative_steps = l) -> exists ff_coefficient_ph_hd_only_pair_body_derivative_steps ff_previous_ph_hd_only_pair_body_derivative_steps ff_current_ph_hd_only_pair_body_derivative_steps. ((((exists fs_h_ph_hd_only_pair_body_derivative_steps_coefficient. fs_h_ph_hd_only_pair_body_derivative_steps_coefficient + S (ff_coefficient_ph_hd_only_pair_body_derivative_steps) = S ((S (ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_v_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_derivative_steps_coefficient. ff_u_hd_only_pair = fs_q_ph_hd_only_pair_body_derivative_steps_coefficient * S ((S (ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_v_hd_only_pair) + (ff_coefficient_ph_hd_only_pair_body_derivative_steps))) /\ ((((exists fs_h_ph_hd_only_pair_body_derivative_steps_before. fs_h_ph_hd_only_pair_body_derivative_steps_before + S (ff_previous_ph_hd_only_pair_body_derivative_steps) = S ((S (ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_e_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_derivative_steps_before. ff_d_hd_only_pair = fs_q_ph_hd_only_pair_body_derivative_steps_before * S ((S (ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_e_hd_only_pair) + (ff_previous_ph_hd_only_pair_body_derivative_steps))) /\ ((((exists fs_h_ph_hd_only_pair_body_derivative_steps_after. fs_h_ph_hd_only_pair_body_derivative_steps_after + S (ff_current_ph_hd_only_pair_body_derivative_steps) = S ((S (S ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_e_hd_only_pair)) /\ exists fs_q_ph_hd_only_pair_body_derivative_steps_after. ff_d_hd_only_pair = fs_q_ph_hd_only_pair_body_derivative_steps_after * S ((S (S ff_i_ph_hd_only_pair_body_derivative_steps)) * ff_e_hd_only_pair) + (ff_current_ph_hd_only_pair_body_derivative_steps))) /\ ff_current_ph_hd_only_pair_body_derivative_steps = ff_previous_ph_hd_only_pair_body_derivative_steps * t + ff_coefficient_ph_hd_only_pair_body_derivative_steps))))))))) /\ forall w. (exists ff_value_hd_only_other. (exists ff_u_hd_only_other_pair ff_v_hd_only_other_pair ff_d_hd_only_other_pair ff_e_hd_only_other_pair. ((((((exists fs_h_ph_hd_only_other_pair_body_value_start. fs_h_ph_hd_only_other_pair_body_value_start + S (0) = S ((S (0)) * ff_v_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_value_start. ff_u_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_value_start * S ((S (0)) * ff_v_hd_only_other_pair) + (0))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_value_terminal. fs_h_ph_hd_only_other_pair_body_value_terminal + S (ff_value_hd_only_other) = S ((S (l)) * ff_v_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_value_terminal. ff_u_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_value_terminal * S ((S (l)) * ff_v_hd_only_other_pair) + (ff_value_hd_only_other))) /\ forall ff_i_ph_hd_only_other_pair_body_value_steps. (exists ph_bound_hd_only_other_pair_body_value_steps. ph_bound_hd_only_other_pair_body_value_steps + S ff_i_ph_hd_only_other_pair_body_value_steps = l) -> exists ff_coefficient_ph_hd_only_other_pair_body_value_steps ff_previous_ph_hd_only_other_pair_body_value_steps ff_current_ph_hd_only_other_pair_body_value_steps. ((((exists fs_h_ph_hd_only_other_pair_body_value_steps_coefficient. fs_h_ph_hd_only_other_pair_body_value_steps_coefficient + S (ff_coefficient_ph_hd_only_other_pair_body_value_steps) = S ((S (ff_i_ph_hd_only_other_pair_body_value_steps)) * c)) /\ exists fs_q_ph_hd_only_other_pair_body_value_steps_coefficient. b = fs_q_ph_hd_only_other_pair_body_value_steps_coefficient * S ((S (ff_i_ph_hd_only_other_pair_body_value_steps)) * c) + (ff_coefficient_ph_hd_only_other_pair_body_value_steps))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_value_steps_before. fs_h_ph_hd_only_other_pair_body_value_steps_before + S (ff_previous_ph_hd_only_other_pair_body_value_steps) = S ((S (ff_i_ph_hd_only_other_pair_body_value_steps)) * ff_v_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_value_steps_before. ff_u_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_value_steps_before * S ((S (ff_i_ph_hd_only_other_pair_body_value_steps)) * ff_v_hd_only_other_pair) + (ff_previous_ph_hd_only_other_pair_body_value_steps))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_value_steps_after. fs_h_ph_hd_only_other_pair_body_value_steps_after + S (ff_current_ph_hd_only_other_pair_body_value_steps) = S ((S (S ff_i_ph_hd_only_other_pair_body_value_steps)) * ff_v_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_value_steps_after. ff_u_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_value_steps_after * S ((S (S ff_i_ph_hd_only_other_pair_body_value_steps)) * ff_v_hd_only_other_pair) + (ff_current_ph_hd_only_other_pair_body_value_steps))) /\ ff_current_ph_hd_only_other_pair_body_value_steps = ff_previous_ph_hd_only_other_pair_body_value_steps * t + ff_coefficient_ph_hd_only_other_pair_body_value_steps)))))) /\ (((((exists fs_h_ph_hd_only_other_pair_body_derivative_start. fs_h_ph_hd_only_other_pair_body_derivative_start + S (0) = S ((S (0)) * ff_e_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_derivative_start. ff_d_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_derivative_start * S ((S (0)) * ff_e_hd_only_other_pair) + (0))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_derivative_terminal. fs_h_ph_hd_only_other_pair_body_derivative_terminal + S (w) = S ((S (l)) * ff_e_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_derivative_terminal. ff_d_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_derivative_terminal * S ((S (l)) * ff_e_hd_only_other_pair) + (w))) /\ forall ff_i_ph_hd_only_other_pair_body_derivative_steps. (exists ph_bound_hd_only_other_pair_body_derivative_steps. ph_bound_hd_only_other_pair_body_derivative_steps + S ff_i_ph_hd_only_other_pair_body_derivative_steps = l) -> exists ff_coefficient_ph_hd_only_other_pair_body_derivative_steps ff_previous_ph_hd_only_other_pair_body_derivative_steps ff_current_ph_hd_only_other_pair_body_derivative_steps. ((((exists fs_h_ph_hd_only_other_pair_body_derivative_steps_coefficient. fs_h_ph_hd_only_other_pair_body_derivative_steps_coefficient + S (ff_coefficient_ph_hd_only_other_pair_body_derivative_steps) = S ((S (ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_v_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_derivative_steps_coefficient. ff_u_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_derivative_steps_coefficient * S ((S (ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_v_hd_only_other_pair) + (ff_coefficient_ph_hd_only_other_pair_body_derivative_steps))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_derivative_steps_before. fs_h_ph_hd_only_other_pair_body_derivative_steps_before + S (ff_previous_ph_hd_only_other_pair_body_derivative_steps) = S ((S (ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_e_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_derivative_steps_before. ff_d_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_derivative_steps_before * S ((S (ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_e_hd_only_other_pair) + (ff_previous_ph_hd_only_other_pair_body_derivative_steps))) /\ ((((exists fs_h_ph_hd_only_other_pair_body_derivative_steps_after. fs_h_ph_hd_only_other_pair_body_derivative_steps_after + S (ff_current_ph_hd_only_other_pair_body_derivative_steps) = S ((S (S ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_e_hd_only_other_pair)) /\ exists fs_q_ph_hd_only_other_pair_body_derivative_steps_after. ff_d_hd_only_other_pair = fs_q_ph_hd_only_other_pair_body_derivative_steps_after * S ((S (S ff_i_ph_hd_only_other_pair_body_derivative_steps)) * ff_e_hd_only_other_pair) + (ff_current_ph_hd_only_other_pair_body_derivative_steps))) /\ ff_current_ph_hd_only_other_pair_body_derivative_steps = ff_previous_ph_hd_only_other_pair_body_derivative_steps * t + ff_coefficient_ph_hd_only_other_pair_body_derivative_steps))))))))) -> z = w)Constructive proof overview
Generated structural guide
Every beta-coded natural polynomial has one and only one exact formal derivative at every evaluation point.
The unchanged tactic script uses 2 declared prerequisites and contains 23 exact native proof lines.
Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
Proof neighborhood
Direct dependencies
Direct dependents
Formal native tactic body
Dependencies are introduced as named hypotheses before line 1. Local theorem links identify exact declared prerequisites. This exact body belongs to a complete independently kernel-checked constructive proof bundle and has Alpha checked-use authority; it does not imply Stable membership.
Read the argument
Proof checkpoints
This is a reading aid, not a new proof or a proof-tree certificate. Checkpoint groups are consecutive commands, not inferred branch boundaries. Every step links to the preserved script.
Named ingredients (2)
01Fix variables and assumptionsL1–4
02Use earlier factsL5–8
03Separate the logical casesL9–9
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L9
cases beta_horner_derivative_only_exists
04Construct an explicit witnessL10–10
Supply the displayed value, then prove that it has the required property.
- L10
exists x
05Separate the logical casesL11–11
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L11
split
06Use earlier factsL12–12
Instantiate or apply named facts and discharge the corresponding proof obligations.
- L12
exact beta_horner_derivative_only_exists_witness
07Fix variables and assumptionsL13–14
08Use earlier factsL15–23
Instantiate or apply named facts and discharge the corresponding proof obligations.
- L15
specialize beta_horner_derivative_only_functional b - L16
specialize beta_horner_derivative_only_functional c - L17
specialize beta_horner_derivative_only_functional t - L18
specialize beta_horner_derivative_only_functional l - L19
specialize beta_horner_derivative_only_functional x - L20
specialize beta_horner_derivative_only_functional w - L21
apply beta_horner_derivative_only_functional - L22
exact beta_horner_derivative_only_exists_witness - L23
exact hw
Original exact command ledger · 23 lines
- 0001
intro b - 0002
intro c - 0003
intro t - 0004
intro l - 0005
specialize beta_horner_derivative_only_exists b - 0006
specialize beta_horner_derivative_only_exists c - 0007
specialize beta_horner_derivative_only_exists t - 0008
specialize beta_horner_derivative_only_exists l - 0009
cases beta_horner_derivative_only_exists - 0010
exists x - 0011
split - 0012
exact beta_horner_derivative_only_exists_witness - 0013
intro w - 0014
intro hw - 0015
specialize beta_horner_derivative_only_functional b - 0016
specialize beta_horner_derivative_only_functional c - 0017
specialize beta_horner_derivative_only_functional t - 0018
specialize beta_horner_derivative_only_functional l - 0019
specialize beta_horner_derivative_only_functional x - 0020
specialize beta_horner_derivative_only_functional w - 0021
apply beta_horner_derivative_only_functional - 0022
exact beta_horner_derivative_only_exists_witness - 0023
exact hw
Separate complete second-wave branches: Full G095 proof · Alpha v27.