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Question 14413: Exact Bernoulli Cylinder Probability under a Declared Product Law

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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R0027-14413 · q-20261014-advance-20261029-r06-iid-sequence-0013

Original question and givens

Use the explicitly declared Bernoulli product-law model with exact p=13/29 in [0,1]. Infinite IID requires the complete identical Bernoulli marginal and mutual independence for every finite subfamily, represented here by the symbolic product-law cylinder certificate. Equal means, pairwise independence or checking one finite prefix is insufficient. Use exact reduced fractions with positive denominators, omitting /1 for integers. No law of large numbers, central limit theorem or additional Markov conclusion is asserted. Ordered finite binary word=[0, 0, 1, 1]. Give (word,ones,zeros,p,probability,symbolic_product_law).

  • G001 — Use the explicitly declared Bernoulli product-law model with exact p=13/29 in [0,1]. Infinite IID requires the complete identical Bernoulli marginal and mutual independence for every finite subfamily, represented here by the symbolic product-law cylinder certificate. Equal means, pairwise independence or checking one finite prefix is insufficient. Use exact reduced fractions with positive denominators, omitting /1 for integers. No law of large numbers, central limit theorem or additional Markov conclusion is asserted. Ordered finite binary word=[0, 0, 1, 1]. Give (word,ones,zeros,p,probability,symbolic_product_law).

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 · calculation

Before

Bernoulli zero-outcome mass := sub(1, 13/29)

After

Bernoulli zero-outcome mass = 16/29

Conditions: none

Compute exactly from original roles,complete pairings and established intermediates,retaining denominators,signs and zeros.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001

S002 · implies

Before

raw Bernoulli parameter=[13, 29]

After

normalized p=13/29;mass at0=16/29;mass at1=13/29;symbolic product-law model explicitly declared

Conditions: none

Retain the complete{0,1} marginal and the explicitly declared product-law premise.Infinite IID is not inferred from a data set,equal means or pairwise checks.

Step identifiers and dependencies

Rule: Bernoulli_complete_marginal_and_product_law_premise · Uses: G001, S001

S003 · implies

Before

original ordered finite binary word=[0, 0, 1, 1];p=13/29;one-minus-p=16/29

After

cylinder atom factorization uses the same declared symbolic product law

Conditions: none

Preserve word order,use p for1 and1−p for0.Factorization is a model premise,not a test proving independence of an unknown dependent law.Retain empty words and p=0 or1 boundaries.

Step identifiers and dependencies

Rule: IID_ordered_word_and_given_model_not_unknown_law_test · Uses: G001, S002

S004 · calculation

Before

binary word number of ones := sum(0, 0, 1, 1)

After

binary word number of ones = 2

Conditions: none

Compute exactly from original roles,complete pairings and established intermediates,retaining denominators,signs and zeros.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · calculation

Before

binary word number of zeros := sub(4, 2)

After

binary word number of zeros = 2

Conditions: none

Compute exactly from original roles,complete pairings and established intermediates,retaining denominators,signs and zeros.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · implies

Before

(13/29)^2

After

Bernoulli one factors power = 169/841

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S005

S007 · implies

Before

(16/29)^2

After

Bernoulli zero factors power = 256/841

Conditions: none

Evaluate the finite nonnegative-integer power exactly; exponent0 uses the polynomial multiplicative identity.

Step identifiers and dependencies

Rule: integer_power · Uses: G001, S006

S008 · calculation

Before

Bernoulli cylinder product := mul(169/841, 256/841)

After

Bernoulli cylinder product = 43264/707281

Conditions: none

Compute exactly from original roles,complete pairings and established intermediates,retaining denominators,signs and zeros.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S007

S009 · implies

Before

word length=4;ones=2;zeros=2;cylinder probability=43264/707281

After

arbitrary-word formula p^ones*(1-p)^zeros;empty product1 including degenerate parameters

Conditions: none

Collect identical marginal factors by counts without sorting or changing the original word.Exponent0 denotes empty-product1,including p=0 or1.This finite evaluation is not a new proof of IID for an unknown infinite sequence.

Step identifiers and dependencies

Rule: Bernoulli_cylinder_formula_empty_product_boundary · Uses: G001, S008

Reverse checks

  • S009 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S008 · premise_and_result_audit — Recompute Bernoulli cylinder product with exact rational arithmetic, not rounded decimals.
  • S007 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S006 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S005 · premise_and_result_audit — Recompute binary word number of zeros with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Recompute binary word number of ones 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 — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S001 · premise_and_result_audit — Recompute Bernoulli zero-outcome mass with exact rational arithmetic, not rounded decimals.

Result

([0, 0, 1, 1], 2, 2, 13/29, 43264/707281, symbolic_product_law)

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: 52d29433c966b9902b522c9af187f71690da04b0dd9812e7ff6a17453b9724e5
  • candidate record SHA-256: cddd4724562780e7966f09431e42f702a99bdd904fcf7be1b42b62f2ea84daa0
  • semantic review receipt SHA-256: e49bf5eaa968c09ebac4ad538ce58251671ed922c957cee1471cfc7b68934bfe
  • question-first witness SHA-256: a7976057c26051fab92342fc95d48af224466c0e1e4ab6ae4c8811c02772e6da
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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