Explore related knowledge and questions →
← Question derivation index · Original question batch
R0048-24713 · q-20261015-advance-20261113-r05-turing-machine-decision-model-0038
Use deterministic single-tape states=[q012, q112, qa12, qr12], input_alphabet=[012], tape_alphabet=[012, X12, _12], blank=_12, start=q012, accept=qa12, reject=qr12, transitions=[[q012, 012, q112, X12, R], [q012, _12, qr12, _12, S], [q112, _12, qa12, _12, L]]. Each transition is [state,read,next,write,L/R/S]; keys [state,read] are unique and halting states have no outgoing transitions. Input symbols form a blank-free tape subset. The integer-indexed tape is blank at every unlisted cell, with configuration [state,head,sparse nonblank tape]; L may move left of0. Canonical answer transitions/tape cells retain the source sort convention. Input=[012], step budget=2. Give (input, step_budget, configurations, step_outcomes, final_state, local_outcome, global_decider_certificate, boundary).
G001 — Use deterministic single-tape states=[q012, q112, qa12, qr12], input_alphabet=[012], tape_alphabet=[012, X12, _12], blank=_12, start=q012, accept=qa12, reject=qr12, transitions=[[q012, 012, q112, X12, R], [q012, _12, qr12, _12, S], [q112, _12, qa12, _12, L]]. Each transition is [state,read,next,write,L/R/S]; keys [state,read] are unique and halting states have no outgoing transitions. Input symbols form a blank-free tape subset. The integer-indexed tape is blank at every unlisted cell, with configuration [state,head,sparse nonblank tape]; L may move left of0. Canonical answer transitions/tape cells retain the source sort convention. Input=[012], step budget=2. Give (input, step_budget, configurations, step_outcomes, final_state, local_outcome, global_decider_certificate, boundary).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.
Before
source roles = [tm-exact-step-trace]
After
derived = [[input, step_budget, configurations, step_outcomes, final_state, local_outcome, global_decider_certificate, boundary]]
Conditions: none
List the full source field order without JavaScript,keeping original data,Boolean flags,mathematical objects and nonclaims distinct.
Rule: source_ordered_fields_without_JS · Uses: G001
Before
source roles = [[q012, q112, qa12, qr12], [012], [012, X12, _12], _12, q012, qa12, qr12, [[q012, 012, q112, X12, R], [q012, _12, qr12, _12, S], [q112, _12, qa12, _12, L]]]
After
derived = [[q012, q112, qa12, qr12], [012], [012, X12, _12], [[q012, _12, qr12, _12, S], [q012, 012, q112, X12, R], [q112, _12, qa12, _12, L]], Yes]
Conditions: none
All three lists are nonempty and unique;input is a blank-free tape subset,but state and alphabet labels may overlap.Source NUL-joined(from,read) keys are unique,and halting states have no outgoing rules.A partial table is legal,not filled with rejection;transition collation and UTF16 set order differ.
Rule: TM_complete_signature_partial_transition_table_allowed · Uses: G001, S001
Before
source roles = [[012], q012, _12]
After
derived = [[q012, 0, [[0, 012]]]]
Conditions: none
Initially head0,input occupies integer cells from0,and every other cell is blank.The sparse record contains nonblank cells only;negative indices are legal.
Rule: TM_exact_initial_configuration_blank_elsewhere · Uses: G001, S002
Before
TM exact integer head move0 := sum(0, 1)
After
TM exact integer head move0 = 1
Conditions: none
Substitute original roles and established intermediates exactly,checking nonzero denominators without floats.
Rule: exact_rational_arithmetic · Uses: G001, S003
Before
source roles = [0, [q012, 0, [[0, 012]]], 012, [q012, 012, q112, X12, R]]
After
derived = [step, [q112, 1, [[0, X12]]]]
Conditions: none
Write at the old head first,delete a blank cell,then update state and move exactly L/R/S according to the source rule.
Rule: TM_source_rule_exact_read_write_state_move · Uses: G001, S004
Before
TM exact integer head move1 := sum(1, -1)
After
TM exact integer head move1 = 0
Conditions: none
Substitute original roles and established intermediates exactly,checking nonzero denominators without floats.
Rule: exact_rational_arithmetic · Uses: G001, S005
Before
source roles = [1, [q112, 1, [[0, X12]]], _12, [q112, _12, qa12, _12, L]]
After
derived = [step, [qa12, 0, [[0, X12]]]]
Conditions: none
Write at the old head first,delete a blank cell,then update state and move exactly L/R/S according to the source rule.
Rule: TM_source_rule_exact_read_write_state_move · Uses: G001, S006
Before
source roles = [[012], 2, [[q012, 0, [[0, 012]]], [q112, 1, [[0, X12]]], [qa12, 0, [[0, X12]]]], [step, step]]
After
derived = [qa12, accept, No]
Conditions: none
Only actual halting states accept or reject.Exhaustion or stuck is neither ordinary rejection nor a proof of infinite running.One finite input trace supplies no all-input decider certificate.
Rule: TM_finite_trace_input_budget_scope_NOT_global_decider · Uses: G001, S007
S008 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.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 — Recompute TM exact integer head move1 with exact rational arithmetic, not rounded decimals.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 — Recompute TM exact integer head move0 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 — Check against the original data and this step's premises; a one-way implication is not an equivalence.([012], 2, [[q012, 0, [[0, 012]]], [q112, 1, [[0, X12]]], [qa12, 0, [[0, X12]]]], [step, step], qa12, accept, No, finite_trace_is_input_local_and_does_not_certify_a_global_decider)
The full substitutions and premise checks give the original answer; source identity,format and status are unchanged.
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.
input commit: 0f7be61e2c22317a4075561dc822c87d881a50dboriginal question SHA-256: 31ac3d9fb9d0f4f559ea0c1b934c81353db24facfe0280703a6c6b9e3ff07268candidate record SHA-256: 0a4ab741f7f9f22aaac0d73b07701888f3527676be608a8e49ab92639c8c7f02semantic review receipt SHA-256: 049a9e07e69fead88d93b34f0937b9470a06d71c1a8d097058fc83554529bdd0question-first witness SHA-256: 0c71ebb418f3de347d232d159fc25e93036f4ab9166bcfb5ee5b4be86d5c55b9Lean: NOT_RUN · human review: NOT_PERFORMED