Explore related knowledge and questions →
Question 594: One Fixed Parameter-Independent Tie Order Produces a Total Finite Estimator On this page Original question and givens Definition and scope Step-by-step derivation Reverse checks Result This question review and source binding Return to catalogue page 3
← Question derivation index · Original question batch
This teaching derivation has second-context AI mathematical and bilingual semantic review, limited to the model and assumptions stated in this question. It has no human review or new Lean proof and does not promote the original question or MKO to Canonical truth.
P1000-0594 · q-20261015-advance-20261116-r04-finite-maximum-likelihood-estimator-0069
Original question and givens Use complete theta labels=[a18, b18], observations=[x18, y18] and aligned exact probability rows=[[[3, 4], [1, 4]], [[1, 4], [3, 4]]]. Each theta row is nonnegative and sums to1. Sort labels with their associated rows/columns, never independently. Tie order=[a18, b18] is one complete parameter permutation, fixed independently of the unknown theta. Give (tie_order, estimator_rows, total_estimator, certificate).
G001 — Use complete theta labels=[a18, b18], observations=[x18, y18] and aligned exact probability rows=[[[3, 4], [1, 4]], [[1, 4], [3, 4]]]. Each theta row is nonnegative and sums to1. Sort labels with their associated rows/columns, never independently. Tie order=[a18, b18] is one complete parameter permutation, fixed independently of the unknown theta. Give (tie_order, estimator_rows, total_estimator, certificate).Definition and scope Keep each observation's complete argmax, then pick the first member in one fixed parameter-independent tie order, giving a total estimator.
Step-by-step derivation S001 · implies Before
Θ=[a18, b18]; Ω=[x18, y18] After
[[3/4, 1/4], [1/4, 3/4]] Conditions: none
Each row is one parameter law and each column an outcome; reorder probabilities together with labels.
Step identifiers and dependencies Rule: full_parametric_model · Uses: G001
S002 · calculation Before
P_a18(Ω) := sum(3/4, 1/4) After
P_a18(Ω) = 1 Conditions: none
Check this law's complete total mass first.
Step identifiers and dependencies Rule: exact_rational_arithmetic · Uses: G001, S001
S003 · calculation Before
P_b18(Ω) := sum(1/4, 3/4) After
P_b18(Ω) = 1 Conditions: none
Check this law's complete total mass first.
Step identifiers and dependencies Rule: exact_rational_arithmetic · Uses: G001, S002
S004 · implies Before
tie priority=[a18, b18] After
one fixed ordering, independent of the observed outcome Conditions: none
Declare one fixed tie order, then choose its first member within each complete argmax.
Step identifiers and dependencies Rule: fixed_tie_rule · Uses: G001, S003
S005 · implies Before
parameter=a18; observed=x18 After
L(a18;x18)=3/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S004
S006 · implies Before
parameter=b18; observed=x18 After
L(b18;x18)=1/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S005
S007 · implies Before
[[a18, 3/4], [b18, 1/4]] After
maximum=3/4; all argmax=[a18] Conditions: none
Retain every maximizer; for an all-zero column the complete argmax is still all parameters.
Step identifiers and dependencies Rule: complete_argmax · Uses: G001, S006
S008 · implies Before
argmax(x18)=[a18]; priority=[a18, b18] After
estimator(x18)=a18 Conditions: none
The selector is single-valued; the original argmax need not be a singleton.
Step identifiers and dependencies Rule: deterministic_tie_selection · Uses: G001, S007
S009 · implies Before
parameter=a18; observed=y18 After
L(a18;y18)=1/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S008
S010 · implies Before
parameter=b18; observed=y18 After
L(b18;y18)=3/4 Conditions: none
Fix the observation and compare its column across parameters, without introducing a prior.
Step identifiers and dependencies Rule: fixed_likelihood_lookup · Uses: G001, S009
S011 · implies Before
[[a18, 1/4], [b18, 3/4]] After
maximum=3/4; all argmax=[b18] Conditions: none
Retain every maximizer; for an all-zero column the complete argmax is still all parameters.
Step identifiers and dependencies Rule: complete_argmax · Uses: G001, S010
S012 · implies Before
argmax(y18)=[b18]; priority=[a18, b18] After
estimator(y18)=b18 Conditions: none
The selector is single-valued; the original argmax need not be a singleton.
Step identifiers and dependencies Rule: deterministic_tie_selection · Uses: G001, S011
S013 · implies Before
defined on 2 outcomes After
total on all 2 listed outcomes Conditions: none
Every listed outcome has an output, including an outcome null under all laws.
Step identifiers and dependencies Rule: total_estimator · Uses: G001, S012
Reverse checks S013 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S012 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S011 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S010 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S009 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S008 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S007 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S006 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S005 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S004 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.S003 · premise_and_result_audit — Recompute P_b18(Ω) with exact rational arithmetic, not rounded decimals.S002 · premise_and_result_audit — Recompute P_a18(Ω) with exact rational arithmetic, not rounded decimals.S001 · premise_and_result_audit — Retain every parameter and sample label; distinguish null, empty tables, zero distributions and tied optima.Result ([a18, b18], [[x18, [a18], a18], [y18, [b18], b18]], Yes, theta_independent_tie_rule_makes_a_total_estimator) The full substitutions and premise audits recover the original answer, retaining its field order and verdict meanings.
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: 0f7be61e2c22317a4075561dc822c87d881a50dboriginal question SHA-256: 13df5eef94260b9fc6e21688cf708c64ed7c83e485b86ca8e025834d1da41334candidate record SHA-256: b8ce8353fc3e5a6fdabfc2facbe448c7dbc7fe0685c2c17ea785518230ad7cbcsemantic review receipt SHA-256: 6c2c6d46aded7582a11ac41a8c0b3bdde2669a53bdb6e796eea2039994a02772question-first witness SHA-256: 77e43898df9efdbf8094ad81fe4ab91cf4b4bd82f481eb9b4699b73cb4da612bLean: NOT_RUN · human review: NOT_PERFORMEDSame-source full JSON