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Question 27815: Oversized Steps, Stationary Maxima and Lost Feasibility Block Different Inferences

On this page
  1. Original question and givens
  2. Definition and scope
  3. Step-by-step derivation
  4. Reverse checks
  5. Result
  6. This question review and source binding

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← Question derivation index · Original question batch

R0054-27815 · q-20261015-pulse-20261119-r03-0090

Original question and givens

Use mode=finite_trace_only, complete model={"diagonal":[1,2],"linear":[14,-14],"point":[15,1],"step_size":[1,4],"steps":1}. Give (mode, step_count, iterate_objective_records, convergence_or_global_optimality_claim, boundary).

  • G001 — Use mode=finite_trace_only, complete model={"diagonal":[1,2],"linear":[14,-14],"point":[15,1],"step_size":[1,4],"steps":1}. Give (mode, step_count, iterate_objective_records, convergence_or_global_optimality_claim, boundary).

Definition and scope

Use the original question domain, assumptions and cited MKO definitions. This item has second-context mathematical and bilingual review, with the model, answer and every arithmetic step independently recomputed from the original parameters; the source question remains a candidate.

Step-by-step derivation

S001 · implies

Before

source roles = [gd-boundary]

After

derived = [[mode, step_count, iterate_objective_records, convergence_or_global_optimality_claim, boundary]]

Conditions: none

List the complete operation/mode field order without JavaScript or answer-shape inference;Boolean,string,null and an unclaimed result remain distinct.

Step identifiers and dependencies

Rule: source_ordered_fields_without_JS · Uses: G001

S002 · calculation

Before

GD boundary ORIGINAL ORIGINAL gradient d*x coordinate0 := mul(1, 15)

After

GD boundary ORIGINAL ORIGINAL gradient d*x coordinate0 = 15

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · calculation

Before

GD boundary ORIGINAL ORIGINAL gradient plus b coordinate0 := sum(15, 14)

After

GD boundary ORIGINAL ORIGINAL gradient plus b coordinate0 = 29

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S002

S004 · calculation

Before

GD boundary ORIGINAL ORIGINAL gradient d*x coordinate1 := mul(2, 1)

After

GD boundary ORIGINAL ORIGINAL gradient d*x coordinate1 = 2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · calculation

Before

GD boundary ORIGINAL ORIGINAL gradient plus b coordinate1 := sum(2, -14)

After

GD boundary ORIGINAL ORIGINAL gradient plus b coordinate1 = -12

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · calculation

Before

GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate0 := mul(15, 15)

After

GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate0 = 225

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S005

S007 · calculation

Before

GD boundary ORIGINAL ORIGINAL diagonal times square coordinate0 := mul(1, 225)

After

GD boundary ORIGINAL ORIGINAL diagonal times square coordinate0 = 225

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S006

S008 · calculation

Before

GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate0 := div(225, 2)

After

GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate0 = 225/2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S007

S009 · calculation

Before

GD boundary ORIGINAL ORIGINAL linear product coordinate0 := mul(14, 15)

After

GD boundary ORIGINAL ORIGINAL linear product coordinate0 = 210

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S008

S010 · calculation

Before

GD boundary ORIGINAL ORIGINAL coordinate objective sum0 := sum(225/2, 210)

After

GD boundary ORIGINAL ORIGINAL coordinate objective sum0 = 645/2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S009

S011 · calculation

Before

GD boundary ORIGINAL ORIGINAL objective running sum0 := sum(0, 645/2)

After

GD boundary ORIGINAL ORIGINAL objective running sum0 = 645/2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S010

S012 · calculation

Before

GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate1 := mul(1, 1)

After

GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate1 = 1

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S011

S013 · calculation

Before

GD boundary ORIGINAL ORIGINAL diagonal times square coordinate1 := mul(2, 1)

After

GD boundary ORIGINAL ORIGINAL diagonal times square coordinate1 = 2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S012

S014 · calculation

Before

GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate1 := div(2, 2)

After

GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate1 = 1

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S013

S015 · calculation

Before

GD boundary ORIGINAL ORIGINAL linear product coordinate1 := mul(-14, 1)

After

GD boundary ORIGINAL ORIGINAL linear product coordinate1 = -14

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S014

S016 · calculation

Before

GD boundary ORIGINAL ORIGINAL coordinate objective sum1 := sum(1, -14)

After

GD boundary ORIGINAL ORIGINAL coordinate objective sum1 = -13

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S015

S017 · calculation

Before

GD boundary ORIGINAL ORIGINAL objective running sum1 := sum(645/2, -13)

After

GD boundary ORIGINAL ORIGINAL objective running sum1 = 619/2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S016

S018 · implies

Before

source roles = [GD boundary ORIGINAL, [1, 2], [14, -14], [15, 1]]

After

derived = [[1, 2], [14, -14], [15, 1], [29, -12], 619/2]

Conditions: none

For the WHOLE specified f(x)=1/2 sum d_i x_i²+sum b_i x_i,differentiate each coordinate to d_i x_i+b_i,not2d_i x_i.Compute ALL gradient entries first,then the objective in original order,squaring before multiplying d_i.Qualify positive diagonals,dimensions and coordinate order.

Step identifiers and dependencies

Rule: GD_WHOLE_positive_diagonal_quadratic_ordered_gradient_and_objective · Uses: G001, S017

S019 · calculation

Before

GD boundary step1 ORIGINAL alpha times gradient0 := mul(1/4, 29)

After

GD boundary step1 ORIGINAL alpha times gradient0 = 29/4

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S018

S020 · calculation

Before

GD boundary step1 ORIGINAL next coordinate0 := sub(15, 29/4)

After

GD boundary step1 ORIGINAL next coordinate0 = 31/4

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S019

S021 · calculation

Before

GD boundary step1 ORIGINAL alpha times gradient1 := mul(1/4, -12)

After

GD boundary step1 ORIGINAL alpha times gradient1 = -3

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S020

S022 · calculation

Before

GD boundary step1 ORIGINAL next coordinate1 := sub(1, -3)

After

GD boundary step1 ORIGINAL next coordinate1 = 4

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S021

S023 · calculation

Before

GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate0 := mul(1, 31/4)

After

GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate0 = 31/4

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S022

S024 · calculation

Before

GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate0 := sum(31/4, 14)

After

GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate0 = 87/4

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S023

S025 · calculation

Before

GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate1 := mul(2, 4)

After

GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate1 = 8

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S024

S026 · calculation

Before

GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate1 := sum(8, -14)

After

GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate1 = -6

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S025

S027 · calculation

Before

GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate0 := mul(31/4, 31/4)

After

GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate0 = 961/16

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S026

S028 · calculation

Before

GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate0 := mul(1, 961/16)

After

GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate0 = 961/16

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S027

S029 · calculation

Before

GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate0 := div(961/16, 2)

After

GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate0 = 961/32

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S028

S030 · calculation

Before

GD boundary step1 next recomputation ORIGINAL linear product coordinate0 := mul(14, 31/4)

After

GD boundary step1 next recomputation ORIGINAL linear product coordinate0 = 217/2

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S029

S031 · calculation

Before

GD boundary step1 next recomputation ORIGINAL coordinate objective sum0 := sum(961/32, 217/2)

After

GD boundary step1 next recomputation ORIGINAL coordinate objective sum0 = 4433/32

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S030

S032 · calculation

Before

GD boundary step1 next recomputation ORIGINAL objective running sum0 := sum(0, 4433/32)

After

GD boundary step1 next recomputation ORIGINAL objective running sum0 = 4433/32

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S031

S033 · calculation

Before

GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate1 := mul(4, 4)

After

GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate1 = 16

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S032

S034 · calculation

Before

GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate1 := mul(2, 16)

After

GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate1 = 32

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S033

S035 · calculation

Before

GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate1 := div(32, 2)

After

GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate1 = 16

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S034

S036 · calculation

Before

GD boundary step1 next recomputation ORIGINAL linear product coordinate1 := mul(-14, 4)

After

GD boundary step1 next recomputation ORIGINAL linear product coordinate1 = -56

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S035

S037 · calculation

Before

GD boundary step1 next recomputation ORIGINAL coordinate objective sum1 := sum(16, -56)

After

GD boundary step1 next recomputation ORIGINAL coordinate objective sum1 = -40

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S036

S038 · calculation

Before

GD boundary step1 next recomputation ORIGINAL objective running sum1 := sum(4433/32, -40)

After

GD boundary step1 next recomputation ORIGINAL objective running sum1 = 3153/32

Conditions: none

Substitute original roles and established intermediates exactly,not approximations or internally consistent changed operands;extra teaching algebra adds no source-domain gate.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S037

S039 · implies

Before

source roles = [GD boundary step1 next recomputation, [[1, 1], [2, 1]], [[14, 1], [-14, 1]], [[31, 4], [4, 1]]]

After

derived = [[1, 2], [14, -14], [31/4, 4], [87/4, -6], 3153/32]

Conditions: none

For the WHOLE specified f(x)=1/2 sum d_i x_i²+sum b_i x_i,differentiate each coordinate to d_i x_i+b_i,not2d_i x_i.Compute ALL gradient entries first,then the objective in original order,squaring before multiplying d_i.Qualify positive diagonals,dimensions and coordinate order.

Step identifiers and dependencies

Rule: GD_WHOLE_positive_diagonal_quadratic_ordered_gradient_and_objective · Uses: G001, S038

S040 · implies

Before

source roles = [1/4, 1]

After

derived = [[[0, [15, 1], 619/2], [1, [31/4, 4], 3153/32]], No]

Conditions: none

This mode requires only alpha>0,not the safe range.Retain the initial point and every later objective.A finite trace,whether decreasing or increasing,is not a general convergence/global-optimality certificate.

Step identifiers and dependencies

Rule: GD_finite_trace_ONLY_positive_not_safe_no_limit_claim · Uses: G001, S039

Reverse checks

  • S040 · premise_and_result_audit — Reverse-check original data,operands,complete scope and premises;finite witnesses,conditional theorem use and formal proof remain distinct.
  • S039 · premise_and_result_audit — Reverse-check original data,operands,complete scope and premises;finite witnesses,conditional theorem use and formal proof remain distinct.
  • S038 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL objective running sum1 with exact rational arithmetic, not rounded decimals.
  • S037 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL coordinate objective sum1 with exact rational arithmetic, not rounded decimals.
  • S036 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL linear product coordinate1 with exact rational arithmetic, not rounded decimals.
  • S035 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate1 with exact rational arithmetic, not rounded decimals.
  • S034 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate1 with exact rational arithmetic, not rounded decimals.
  • S033 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate1 with exact rational arithmetic, not rounded decimals.
  • S032 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL objective running sum0 with exact rational arithmetic, not rounded decimals.
  • S031 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL coordinate objective sum0 with exact rational arithmetic, not rounded decimals.
  • S030 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL linear product coordinate0 with exact rational arithmetic, not rounded decimals.
  • S029 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL quadratic divide2 coordinate0 with exact rational arithmetic, not rounded decimals.
  • S028 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL diagonal times square coordinate0 with exact rational arithmetic, not rounded decimals.
  • S027 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL objective SQUARE FIRST coordinate0 with exact rational arithmetic, not rounded decimals.
  • S026 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate1 with exact rational arithmetic, not rounded decimals.
  • S025 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate1 with exact rational arithmetic, not rounded decimals.
  • S024 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL gradient plus b coordinate0 with exact rational arithmetic, not rounded decimals.
  • S023 · premise_and_result_audit — Recompute GD boundary step1 next recomputation ORIGINAL gradient d*x coordinate0 with exact rational arithmetic, not rounded decimals.
  • S022 · premise_and_result_audit — Recompute GD boundary step1 ORIGINAL next coordinate1 with exact rational arithmetic, not rounded decimals.
  • S021 · premise_and_result_audit — Recompute GD boundary step1 ORIGINAL alpha times gradient1 with exact rational arithmetic, not rounded decimals.
  • S020 · premise_and_result_audit — Recompute GD boundary step1 ORIGINAL next coordinate0 with exact rational arithmetic, not rounded decimals.
  • S019 · premise_and_result_audit — Recompute GD boundary step1 ORIGINAL alpha times gradient0 with exact rational arithmetic, not rounded decimals.
  • S018 · premise_and_result_audit — Reverse-check original data,operands,complete scope and premises;finite witnesses,conditional theorem use and formal proof remain distinct.
  • S017 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL objective running sum1 with exact rational arithmetic, not rounded decimals.
  • S016 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL coordinate objective sum1 with exact rational arithmetic, not rounded decimals.
  • S015 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL linear product coordinate1 with exact rational arithmetic, not rounded decimals.
  • S014 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate1 with exact rational arithmetic, not rounded decimals.
  • S013 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL diagonal times square coordinate1 with exact rational arithmetic, not rounded decimals.
  • S012 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate1 with exact rational arithmetic, not rounded decimals.
  • S011 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL objective running sum0 with exact rational arithmetic, not rounded decimals.
  • S010 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL coordinate objective sum0 with exact rational arithmetic, not rounded decimals.
  • S009 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL linear product coordinate0 with exact rational arithmetic, not rounded decimals.
  • S008 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL quadratic divide2 coordinate0 with exact rational arithmetic, not rounded decimals.
  • S007 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL diagonal times square coordinate0 with exact rational arithmetic, not rounded decimals.
  • S006 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL objective SQUARE FIRST coordinate0 with exact rational arithmetic, not rounded decimals.
  • S005 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL gradient plus b coordinate1 with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL gradient d*x coordinate1 with exact rational arithmetic, not rounded decimals.
  • S003 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL gradient plus b coordinate0 with exact rational arithmetic, not rounded decimals.
  • S002 · premise_and_result_audit — Recompute GD boundary ORIGINAL ORIGINAL gradient d*x coordinate0 with exact rational arithmetic, not rounded decimals.
  • S001 · premise_and_result_audit — Reverse-check original data,operands,complete scope and premises;finite witnesses,conditional theorem use and formal proof remain distinct.

Result

(finite_trace_only, 1, [[0, [15, 1], 619/2], [1, [31/4, 4], 3153/32]], No, finite_trace_does_not_prove_convergence_or_global_optimality)

The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.

This question review and source binding

Review date: 2026-10-26

Original questions, answers, step expressions, numeric ASTs and historical records are retained. Source candidate labels remain historical and are not overwritten as formal proof.

Source hashes and review receipts
  • input commit: 0f7be61e2c22317a4075561dc822c87d881a50db
  • original question SHA-256: f63019781111f8a82499ed0cbbf000df8a6af959ce9616b6e414426b7ceb7686
  • candidate record SHA-256: 38e6fa2f4f21c82d2ac57c3713cec5c24dfe5ce4c26b01994cf54fcee258eb89
  • semantic review receipt SHA-256: 0a76d8e93c08bb16998a0483f3dfc0504f269fc3e1982e6cd868cab0a2856d54
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  • Lean: NOT_RUN · human review: NOT_PERFORMED
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