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Question 14392: Later Information Must Refine Earlier Information

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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R0027-14392 · q-20261014-advance-20261029-r05-finite-filtration-0017

Original question and givens

Use the same finite carrier Fin(6)={0,…,5} at all times, with complete partitions=[[0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1], [0, 0, 0, 10, 11, 10]] in time order starting at 0. Equal labels in one row mean the same information block; numerical label size and labels in other rows carry no extra meaning. A filtration requires every later partition to refine its predecessor. Event measurability and process adaptedness are separate checks; no natural-filtration, independence or Markov conclusion is inferred. Give (n,time_count,nesting_failures,filtration?). Failure rows [t,a,b] list t increasingly, then a<b increasingly, when outcomes share a block at t but belonged to different blocks at t−1.

  • G001 — Use the same finite carrier Fin(6)={0,…,5} at all times, with complete partitions=[[0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1], [0, 0, 0, 10, 11, 10]] in time order starting at 0. Equal labels in one row mean the same information block; numerical label size and labels in other rows carry no extra meaning. A filtration requires every later partition to refine its predecessor. Event measurability and process adaptedness are separate checks; no natural-filtration, independence or Markov conclusion is inferred. Give (n,time_count,nesting_failures,filtration?). Failure rows [t,a,b] list t increasingly, then a<b increasingly, when outcomes share a block at t but belonged to different blocks at t−1.

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

same carrier Fin(6);complete partitions in original time order=[[0, 0, 0, 0, 0, 0], [0, 0, 0, 1, 1, 1], [0, 0, 0, 10, 11, 10]]

After

equal labels mean same information block only within that row

Conditions: none

Labels encode equivalence blocks only within their time row.Label magnitude or reuse across rows carries no extra information;larger numbers do not mean more information.

Step identifiers and dependencies

Rule: filtration_same_carrier_time_and_label_roles · Uses: G001

S002 · implies

Before

time=1;later block label=0;indices=[0, 1, 2]

After

earlier block labels in encounter order=[0];contained in one earlier block=Yes

Conditions: none

Every later block must lie wholly in one earlier block.Merging previously distinguishable outcomes violates filtration;the refinement direction cannot be reversed.

Step identifiers and dependencies

Rule: filtration_later_refines_earlier_complete_blocks · Uses: G001, S001

S003 · implies

Before

time=1;later block label=1;indices=[3, 4, 5]

After

earlier block labels in encounter order=[0];contained in one earlier block=Yes

Conditions: none

Every later block must lie wholly in one earlier block.Merging previously distinguishable outcomes violates filtration;the refinement direction cannot be reversed.

Step identifiers and dependencies

Rule: filtration_later_refines_earlier_complete_blocks · Uses: G001, S002

S004 · implies

Before

time=2;later block label=0;indices=[0, 1, 2]

After

earlier block labels in encounter order=[0];contained in one earlier block=Yes

Conditions: none

Every later block must lie wholly in one earlier block.Merging previously distinguishable outcomes violates filtration;the refinement direction cannot be reversed.

Step identifiers and dependencies

Rule: filtration_later_refines_earlier_complete_blocks · Uses: G001, S003

S005 · implies

Before

time=2;later block label=10;indices=[3, 5]

After

earlier block labels in encounter order=[1];contained in one earlier block=Yes

Conditions: none

Every later block must lie wholly in one earlier block.Merging previously distinguishable outcomes violates filtration;the refinement direction cannot be reversed.

Step identifiers and dependencies

Rule: filtration_later_refines_earlier_complete_blocks · Uses: G001, S004

S006 · implies

Before

time=2;later block label=11;indices=[4]

After

earlier block labels in encounter order=[1];contained in one earlier block=Yes

Conditions: none

Every later block must lie wholly in one earlier block.Merging previously distinguishable outcomes violates filtration;the refinement direction cannot be reversed.

Step identifiers and dependencies

Rule: filtration_later_refines_earlier_complete_blocks · Uses: G001, S005

S007 · implies

Before

all nesting failures in time,a,b order=[]

After

filtration=Yes;per-time measurability checks remain separate

Conditions: none

Audit refinement at every adjacent time.Even if nesting fails,the protocol may still look up a block or check measurability in one row.One passing row does not repair the whole information sequence.

Step identifiers and dependencies

Rule: filtration_nesting_not_adaptedness · Uses: G001, S006

Reverse checks

  • 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 — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • S004 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
  • 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 — Check against the original data and this step's premises; a one-way implication is not an equivalence.

Result

(6, 3, [], Yes)

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: 2e7e5137ee94e66118c4892ec0ec66c65fb6aeb089d2d728311dc96736ea8072
  • candidate record SHA-256: 569d92ea935a5666c79930266aba64d6c05ad170328cc86da23860a6411e206c
  • semantic review receipt SHA-256: e49bf5eaa968c09ebac4ad538ce58251671ed922c957cee1471cfc7b68934bfe
  • question-first witness SHA-256: a7976057c26051fab92342fc95d48af224466c0e1e4ab6ae4c8811c02772e6da
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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