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Question 27267: Finite Marginal Moments Qualify the Declared IID CLT Premises

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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R0053-27267 · q-20261015-advance-20261118-r01-central-limit-theorem-finite-variance-iid-0017

Original question and givens

Use the aligned finite law values=[-1, 0], probabilities=[2/5, 3/5], with declared process certificate=infinite_iid. The token is an explicit infinite IID premise, not a process construction or proof by this finite calculation. Give (law_rows, mean, variance, positive_finite_variance, declared_process_certificate, qualification_statement).

  • G001 — Use the aligned finite law values=[-1, 0], probabilities=[2/5, 3/5], with declared process certificate=infinite_iid. The token is an explicit infinite IID premise, not a process construction or proof by this finite calculation. Give (law_rows, mean, variance, positive_finite_variance, declared_process_certificate, qualification_statement).

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 = [clt-finite-law-moments]

After

derived = [[law_rows, mean, variance, positive_finite_variance, declared_process_certificate, qualification_statement]]

Conditions: none

List the complete source field order and mode-specific roles without JavaScript or answer-shape inference;No,undefined and infinity retain their distinct meanings.

Step identifiers and dependencies

Rule: source_ordered_fields_without_JS · Uses: G001

S002 · implies

Before

source roles = [infinite_iid]

After

derived = [ASSUME infinite sequence is IID with this common marginal]

Conditions: none

infinite_iid is an explicit infinite-process premise token,not a construction or finite verification of infinite independence.Subsequent reasoning is conditional on that premise.

Step identifiers and dependencies

Rule: CLT_infinite_iid_is_EXACT_GIVEN_premise_not_constructed_process · Uses: G001, S001

S003 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL law mass sum0 := sum(0, 2/5)

After

CLT ORIGINAL common marginal ORIGINAL law mass sum0 = 2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S002

S004 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL law mass sum1 := sum(2/5, 3/5)

After

CLT ORIGINAL common marginal ORIGINAL law mass sum1 = 1

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · implies

Before

source roles = [CLT ORIGINAL common marginal, [-1, 0], [[2, 5], [3, 5]]]

After

derived = [[[-1, 2/5], [0, 3/5]], 1]

Conditions: none

Pair ORIGINAL values/probabilities before numeric sorting,retaining zero-mass labels and checking total mass1.This qualifies a finite marginal,not an infinite IID process inferred from samples.

Step identifiers and dependencies

Rule: CLT_ORIGINAL_value_probability_pairs_NUMERIC_order_normalized · Uses: G001, S004

S006 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL value times probability0 := mul(-1, 2/5)

After

CLT ORIGINAL common marginal ORIGINAL value times probability0 = -2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S005

S007 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL ascending mean sum0 := sum(0, -2/5)

After

CLT ORIGINAL common marginal ORIGINAL ascending mean sum0 = -2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S006

S008 · calculation

Before

CLT ORIGINAL common marginal exact value square0 := mul(-1, -1)

After

CLT ORIGINAL common marginal exact value square0 = 1

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S007

S009 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL square times probability0 := mul(1, 2/5)

After

CLT ORIGINAL common marginal ORIGINAL square times probability0 = 2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S008

S010 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL ascending second moment sum0 := sum(0, 2/5)

After

CLT ORIGINAL common marginal ORIGINAL ascending second moment sum0 = 2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S009

S011 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL value times probability1 := mul(0, 3/5)

After

CLT ORIGINAL common marginal ORIGINAL value times probability1 = 0

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S010

S012 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL ascending mean sum1 := sum(-2/5, 0)

After

CLT ORIGINAL common marginal ORIGINAL ascending mean sum1 = -2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S011

S013 · calculation

Before

CLT ORIGINAL common marginal exact value square1 := mul(0, 0)

After

CLT ORIGINAL common marginal exact value square1 = 0

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S012

S014 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL square times probability1 := mul(0, 3/5)

After

CLT ORIGINAL common marginal ORIGINAL square times probability1 = 0

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S013

S015 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL ascending second moment sum1 := sum(2/5, 0)

After

CLT ORIGINAL common marginal ORIGINAL ascending second moment sum1 = 2/5

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S014

S016 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL mean square := mul(-2/5, -2/5)

After

CLT ORIGINAL common marginal ORIGINAL mean square = 4/25

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S015

S017 · calculation

Before

CLT ORIGINAL common marginal ORIGINAL second minus mean square := sub(2/5, 4/25)

After

CLT ORIGINAL common marginal ORIGINAL second minus mean square = 6/25

Conditions: none

Substitute original roles and established intermediates exactly;no approximation,slot substitution or internally consistent changed operand.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S016

S018 · implies

Before

source roles = [CLT ORIGINAL common marginal, [[-1, 2/5], [0, 3/5]]]

After

derived = [-2/5, 2/5, 6/25]

Conditions: none

Use the SAME complete law for E[X],E[X²] and Var(X)=E[X²]-E[X]².Keep value² as an exact teaching intermediate and apply the source profile to its product with probability,not an extra rejection for a large zero-mass value square.Finite moments prove neither independence,an infinite process nor a distributional limit.

Step identifiers and dependencies

Rule: CLT_ALL_finite_marginal_moments_not_a_process_or_limit_proof · Uses: G001, S017

Reverse checks

  • S018 · premise_and_result_audit — Reverse-check the complete original data,step operands and premises;finite checks,conditional named-theorem use and general formal proof remain distinct.
  • S017 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL second minus mean square with exact rational arithmetic, not rounded decimals.
  • S016 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL mean square with exact rational arithmetic, not rounded decimals.
  • S015 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL ascending second moment sum1 with exact rational arithmetic, not rounded decimals.
  • S014 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL square times probability1 with exact rational arithmetic, not rounded decimals.
  • S013 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal exact value square1 with exact rational arithmetic, not rounded decimals.
  • S012 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL ascending mean sum1 with exact rational arithmetic, not rounded decimals.
  • S011 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL value times probability1 with exact rational arithmetic, not rounded decimals.
  • S010 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL ascending second moment sum0 with exact rational arithmetic, not rounded decimals.
  • S009 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL square times probability0 with exact rational arithmetic, not rounded decimals.
  • S008 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal exact value square0 with exact rational arithmetic, not rounded decimals.
  • S007 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL ascending mean sum0 with exact rational arithmetic, not rounded decimals.
  • S006 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL value times probability0 with exact rational arithmetic, not rounded decimals.
  • S005 · premise_and_result_audit — Reverse-check the complete original data,step operands and premises;finite checks,conditional named-theorem use and general formal proof remain distinct.
  • S004 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL law mass sum1 with exact rational arithmetic, not rounded decimals.
  • S003 · premise_and_result_audit — Recompute CLT ORIGINAL common marginal ORIGINAL law mass sum0 with exact rational arithmetic, not rounded decimals.
  • S002 · premise_and_result_audit — Reverse-check the complete original data,step operands and premises;finite checks,conditional named-theorem use and general formal proof remain distinct.
  • S001 · premise_and_result_audit — Reverse-check the complete original data,step operands and premises;finite checks,conditional named-theorem use and general formal proof remain distinct.

Result

([[-1, 2/5], [0, 3/5]], -2/5, 6/25, Yes, infinite_iid, CLT_hypotheses_qualified)

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: 8867d388b21926110de032e6cd3cefe67f9659876f22d33269c2a1bd77de07bb
  • candidate record SHA-256: 48ea01421b11b7e63feb1bbe4c23f42e6ffd6fc00ad340b3e5df65b2d80fde81
  • semantic review receipt SHA-256: 1b7a62514347b82518305d5feb4369a52d7d44c442a0f2b131e9eb3cd7b45f62
  • question-first witness SHA-256: 79dc2a1077081f3ea2a03f75e32778163bf05e814cdf4c29ed86e567295f9ee1
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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