OCMEBilingual mathematics & derivations繁體中文

Explore related knowledge and questions →

Question 25514: Unbiasedness Gives MSE Equal to Variance, Not Zero Error or Consistency

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

Return to catalogue page 128

← Question derivation index · Original question batch

R0050-25514 · q-20261015-advance-20261115-r03-bias-variance-decomposition-0089

Original question and givens

Use scalar theta=1, complete estimator values=[1, 3, 5] and aligned exact probabilities=[1/4, 1/2, 1/4]. Under this same P_theta the nonnegative probabilities sum to1. Retain zero-mass listed rows and sort values with their own probabilities. Given listed observed estimate=1. Give (theta, observed, observed_squared_error, bias, unbiased, variance, MSE, variance_comparison_holds, unbiased_and_zero_MSE, consistency_claim, boundary).

  • G001 — Use scalar theta=1, complete estimator values=[1, 3, 5] and aligned exact probabilities=[1/4, 1/2, 1/4]. Under this same P_theta the nonnegative probabilities sum to1. Retain zero-mass listed rows and sort values with their own probabilities. Given listed observed estimate=1. Give (theta, observed, observed_squared_error, bias, unbiased, variance, MSE, variance_comparison_holds, unbiased_and_zero_MSE, consistency_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 = [biasvar-biased-unbiased-boundary]

After

derived = [[theta, observed, observed_squared_error, bias, unbiased, variance, MSE, variance_comparison_holds, unbiased_and_zero_MSE, consistency_claim, boundary]]

Conditions: none

List the full source field order without JavaScript.LP weak uses13 fields,zero/strong15;premises and roles follow the original operation/mode without padding.

Step identifiers and dependencies

Rule: source_ordered_fields_without_JS · Uses: G001

S002 · calculation

Before

Biasvar ORIGINAL single theta ORIGINAL mass sum := sum(1/4, 1/2, 1/4)

After

Biasvar ORIGINAL single theta ORIGINAL mass sum = 1

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · implies

Before

source roles = [Biasvar ORIGINAL single theta, 1, [1, 3, 5], [[1, 4], [1, 2], [1, 4]]]

After

derived = [[(1, 1/4), (3, 1/2), (5, 1/4)], 1]

Conditions: none

Qualify this same complete P_theta law,with nonnegative original-order mass summing to1,and sort values numerically with their masses.Keep null rows.Unlike the earlier MSE node,this node explicitly proves the decomposition.

Step identifiers and dependencies

Rule: Biasvar_complete_SAME_law_numeric_sorted_ALIGNED_null_rows · Uses: G001, S002

S004 · calculation

Before

Biasvar ORIGINAL single theta mean product0 := mul(1, 1/4)

After

Biasvar ORIGINAL single theta mean product0 = 1/4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · calculation

Before

Biasvar ORIGINAL single theta mean product1 := mul(3, 1/2)

After

Biasvar ORIGINAL single theta mean product1 = 3/2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · calculation

Before

Biasvar ORIGINAL single theta mean product2 := mul(5, 1/4)

After

Biasvar ORIGINAL single theta mean product2 = 5/4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S005

S007 · calculation

Before

Biasvar ORIGINAL single theta mean sum := sum(1/4, 3/2, 5/4)

After

Biasvar ORIGINAL single theta mean sum = 3

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S006

S008 · calculation

Before

Biasvar ORIGINAL single theta bias mean minus theta := sub(3, 1)

After

Biasvar ORIGINAL single theta bias mean minus theta = 2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S007

S009 · calculation

Before

Biasvar ORIGINAL single theta centered deviation0 := sub(1, 3)

After

Biasvar ORIGINAL single theta centered deviation0 = -2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S008

S010 · calculation

Before

Biasvar ORIGINAL single theta centered square0 := mul(-2, -2)

After

Biasvar ORIGINAL single theta centered square0 = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S009

S011 · calculation

Before

Biasvar ORIGINAL single theta variance weighted term0 := mul(1/4, 4)

After

Biasvar ORIGINAL single theta variance weighted term0 = 1

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S010

S012 · calculation

Before

Biasvar ORIGINAL single theta centered deviation1 := sub(3, 3)

After

Biasvar ORIGINAL single theta centered deviation1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S011

S013 · calculation

Before

Biasvar ORIGINAL single theta centered square1 := mul(0, 0)

After

Biasvar ORIGINAL single theta centered square1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S012

S014 · calculation

Before

Biasvar ORIGINAL single theta variance weighted term1 := mul(1/2, 0)

After

Biasvar ORIGINAL single theta variance weighted term1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S013

S015 · calculation

Before

Biasvar ORIGINAL single theta centered deviation2 := sub(5, 3)

After

Biasvar ORIGINAL single theta centered deviation2 = 2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S014

S016 · calculation

Before

Biasvar ORIGINAL single theta centered square2 := mul(2, 2)

After

Biasvar ORIGINAL single theta centered square2 = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S015

S017 · calculation

Before

Biasvar ORIGINAL single theta variance weighted term2 := mul(1/4, 4)

After

Biasvar ORIGINAL single theta variance weighted term2 = 1

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S016

S018 · calculation

Before

Biasvar ORIGINAL single theta variance sum := sum(1, 0, 1)

After

Biasvar ORIGINAL single theta variance sum = 2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S017

S019 · calculation

Before

Biasvar ORIGINAL single theta theta error0 := sub(1, 1)

After

Biasvar ORIGINAL single theta theta error0 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S018

S020 · calculation

Before

Biasvar ORIGINAL single theta theta square0 := mul(0, 0)

After

Biasvar ORIGINAL single theta theta square0 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S019

S021 · calculation

Before

Biasvar ORIGINAL single theta direct MSE term0 := mul(1/4, 0)

After

Biasvar ORIGINAL single theta direct MSE term0 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S020

S022 · calculation

Before

Biasvar ORIGINAL single theta theta error1 := sub(3, 1)

After

Biasvar ORIGINAL single theta theta error1 = 2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S021

S023 · calculation

Before

Biasvar ORIGINAL single theta theta square1 := mul(2, 2)

After

Biasvar ORIGINAL single theta theta square1 = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S022

S024 · calculation

Before

Biasvar ORIGINAL single theta direct MSE term1 := mul(1/2, 4)

After

Biasvar ORIGINAL single theta direct MSE term1 = 2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S023

S025 · calculation

Before

Biasvar ORIGINAL single theta theta error2 := sub(5, 1)

After

Biasvar ORIGINAL single theta theta error2 = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S024

S026 · calculation

Before

Biasvar ORIGINAL single theta theta square2 := mul(4, 4)

After

Biasvar ORIGINAL single theta theta square2 = 16

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S025

S027 · calculation

Before

Biasvar ORIGINAL single theta direct MSE term2 := mul(1/4, 16)

After

Biasvar ORIGINAL single theta direct MSE term2 = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S026

S028 · calculation

Before

Biasvar ORIGINAL single theta direct MSE sum := sum(0, 2, 4)

After

Biasvar ORIGINAL single theta direct MSE sum = 6

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S027

S029 · calculation

Before

Biasvar ORIGINAL single theta centered mean product0 := mul(1/4, -2)

After

Biasvar ORIGINAL single theta centered mean product0 = -1/2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S028

S030 · calculation

Before

Biasvar ORIGINAL single theta centered mean product1 := mul(1/2, 0)

After

Biasvar ORIGINAL single theta centered mean product1 = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S029

S031 · calculation

Before

Biasvar ORIGINAL single theta centered mean product2 := mul(1/4, 2)

After

Biasvar ORIGINAL single theta centered mean product2 = 1/2

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S030

S032 · calculation

Before

Biasvar ORIGINAL single theta centered mean sum := sum(-1/2, 0, 1/2)

After

Biasvar ORIGINAL single theta centered mean sum = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S031

S033 · calculation

Before

Biasvar ORIGINAL single theta bias times centered mean := mul(2, 0)

After

Biasvar ORIGINAL single theta bias times centered mean = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S032

S034 · calculation

Before

Biasvar ORIGINAL single theta cross twice inner := mul(2, 0)

After

Biasvar ORIGINAL single theta cross twice inner = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S033

S035 · calculation

Before

Biasvar ORIGINAL single theta squared bias := mul(2, 2)

After

Biasvar ORIGINAL single theta squared bias = 4

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S034

S036 · calculation

Before

Biasvar ORIGINAL single theta variance plus squared bias := sum(2, 4)

After

Biasvar ORIGINAL single theta variance plus squared bias = 6

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S035

S037 · implies

Before

source roles = [Biasvar ORIGINAL single theta, 1, 3, 2, [(1, 1/4), (3, 1/2), (5, 1/4)]]

After

derived = [[[1, 1/4, -2, 2, 0, 4, -8, 4, 0], [3, 1/2, 0, 2, 2, 0, 0, 4, 4], [5, 1/4, 2, 2, 4, 4, 8, 4, 16]], 0, 0, 2, 6, 6, Yes]

Conditions: none

For every value,T−theta=(T−mean)+bias.Square to centered²+2*bias*centered+bias² and weight under the same law.E[T−mean]=E[T]−mean*1=0 cancels the cross term,without requiring bias0 or every deviation0.Total mass1 leaves bias².Pointwise cross terms are extra exact teaching values,not new source-profile restrictions.

Step identifiers and dependencies

Rule: Biasvar_EVERY_value_square_expansion_and_GENERAL_cross_cancellation · Uses: G001, S036

S038 · calculation

Before

Biasvar ORIGINAL observed minus theta := sub(1, 1)

After

Biasvar ORIGINAL observed minus theta = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S037

S039 · calculation

Before

Biasvar ORIGINAL observed square := mul(0, 0)

After

Biasvar ORIGINAL observed square = 0

Conditions: none

Substitute original roles and established intermediates exactly,without floats;extra teaching identities do not impose new source numeric restrictions.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S038

S040 · implies

Before

source roles = [1, 0, 2, 2, 6]

After

derived = [No, Yes, No, No]

Conditions: none

Unbiasedness only removes bias²,giving MSE=variance,not variance0 or consistency.When biased,MSE>=variance.One observed loss is computed separately and may coincide with MSE without defining it.

Step identifiers and dependencies

Rule: Biasvar_observed_error_unbiased_variance_risk_consistency_separate · Uses: G001, S039

Reverse checks

  • S040 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S039 · premise_and_result_audit — Recompute Biasvar ORIGINAL observed square with exact rational arithmetic, not rounded decimals.
  • S038 · premise_and_result_audit — Recompute Biasvar ORIGINAL observed minus theta with exact rational arithmetic, not rounded decimals.
  • S037 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S036 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta variance plus squared bias with exact rational arithmetic, not rounded decimals.
  • S035 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta squared bias with exact rational arithmetic, not rounded decimals.
  • S034 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta cross twice inner with exact rational arithmetic, not rounded decimals.
  • S033 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta bias times centered mean with exact rational arithmetic, not rounded decimals.
  • S032 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered mean sum with exact rational arithmetic, not rounded decimals.
  • S031 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered mean product2 with exact rational arithmetic, not rounded decimals.
  • S030 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered mean product1 with exact rational arithmetic, not rounded decimals.
  • S029 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered mean product0 with exact rational arithmetic, not rounded decimals.
  • S028 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta direct MSE sum with exact rational arithmetic, not rounded decimals.
  • S027 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta direct MSE term2 with exact rational arithmetic, not rounded decimals.
  • S026 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta square2 with exact rational arithmetic, not rounded decimals.
  • S025 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta error2 with exact rational arithmetic, not rounded decimals.
  • S024 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta direct MSE term1 with exact rational arithmetic, not rounded decimals.
  • S023 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta square1 with exact rational arithmetic, not rounded decimals.
  • S022 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta error1 with exact rational arithmetic, not rounded decimals.
  • S021 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta direct MSE term0 with exact rational arithmetic, not rounded decimals.
  • S020 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta square0 with exact rational arithmetic, not rounded decimals.
  • S019 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta theta error0 with exact rational arithmetic, not rounded decimals.
  • S018 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta variance sum with exact rational arithmetic, not rounded decimals.
  • S017 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta variance weighted term2 with exact rational arithmetic, not rounded decimals.
  • S016 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered square2 with exact rational arithmetic, not rounded decimals.
  • S015 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered deviation2 with exact rational arithmetic, not rounded decimals.
  • S014 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta variance weighted term1 with exact rational arithmetic, not rounded decimals.
  • S013 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered square1 with exact rational arithmetic, not rounded decimals.
  • S012 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered deviation1 with exact rational arithmetic, not rounded decimals.
  • S011 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta variance weighted term0 with exact rational arithmetic, not rounded decimals.
  • S010 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered square0 with exact rational arithmetic, not rounded decimals.
  • S009 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta centered deviation0 with exact rational arithmetic, not rounded decimals.
  • S008 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta bias mean minus theta with exact rational arithmetic, not rounded decimals.
  • S007 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta mean sum with exact rational arithmetic, not rounded decimals.
  • S006 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta mean product2 with exact rational arithmetic, not rounded decimals.
  • S005 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta mean product1 with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta mean product0 with exact rational arithmetic, not rounded decimals.
  • S003 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S002 · premise_and_result_audit — Recompute Biasvar ORIGINAL single theta ORIGINAL mass sum with exact rational arithmetic, not rounded decimals.
  • S001 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.

Result

(1, 1, 0, 2, No, 2, 6, Yes, No, No, unbiased_only_gives_MSE_equals_variance_not_zero_MSE_or_consistency_and_observed_error_is_not_MSE)

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: 6f721037ca4e17611ee4cc3ca8fe73053b9b45a581fd04bce1dde9f3876de90f
  • candidate record SHA-256: c10b9a1da08ba8c3aaca878fc51fef322aab8f7d929a47787eb3fb617f23711c
  • semantic review receipt SHA-256: 74c63a2c12285a3b2073f8d9f102bc2ba5fb7ed890c5b7c3b8afa94f032eda82
  • question-first witness SHA-256: 6d56428610f8e86c45fd00a2ad3b27ad9c052956946f0b91d71a68536f79d95f
  • Lean: NOT_RUN · human review: NOT_PERFORMED
Same-source full JSON