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Question 27223: Declared Theorem Application, Failed Hypotheses and Finite Evidence Have Different Roles

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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R0053-27223 · q-20261015-advance-20261118-r01-central-limit-theorem-finite-variance-iid-0098

Original question and givens

Use mode=zero_variance and complete model={"value":-2,"n":4}. Give (mode, constant_value, n, variance, standardization_obstruction, this_standardization_claim).

  • G001 — Use mode=zero_variance and complete model={"value":-2,"n":4}. Give (mode, constant_value, n, variance, standardization_obstruction, this_standardization_claim).

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-application-boundary]

After

derived = [[mode, constant_value, n, variance, standardization_obstruction, this_standardization_claim]]

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 = [-2, 4]

After

derived = [0, sigma=0_makes_standardization_undefined, No]

Conditions: none

A constant marginal has sigma=0,so standardization divides by0 and cannot be a standard-normal variable.Here undefined is the SOURCE description,not an invented null for a computable field.

Step identifiers and dependencies

Rule: CLT_zero_variance_normalization_UNDEFINED_not_numeric_zero · Uses: G001, S001

Reverse checks

  • 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

(zero_variance, -2, 4, 0, sigma=0_makes_standardization_undefined, No)

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: 30379825074dce82e8718d14b966dc64b2f44b152c289f49a513ad2f3b30b0ec
  • candidate record SHA-256: 7a7edbb03ad64b7bf354ddd644c1778a87fc735316aec314c1ff293131c08e8f
  • semantic review receipt SHA-256: 1b7a62514347b82518305d5feb4369a52d7d44c442a0f2b131e9eb3cd7b45f62
  • question-first witness SHA-256: 79dc2a1077081f3ea2a03f75e32778163bf05e814cdf4c29ed86e567295f9ee1
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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