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Question 30423: Three-Part Prefix Budget and Eligibility

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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R0059-30423 · q-20261010-advance-20261014-r01-angle-0098

Original question and givens

Use exact degrees for nondirected angles in [0,180], not a directed rotation or a measurement from a sketch. Ordered parts=[22, 90, 23], target=180. Give (three prefix sums, is the total≤180?, target−total).

  • G001 — Use exact degrees for nondirected angles in [0,180], not a directed rotation or a measurement from a sketch. Ordered parts=[22, 90, 23], target=180. Give (three prefix sums, is the total≤180?, target−total).

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 = [qf-density14-angle-three-part-budget, density14_angle_three_part_budget, finite_nondirected_degree_protocol]

After

derived = [[ALL_prefix_sums, total_le180, SIGNED_target_minus_total]]

Conditions: none

Retain the ORIGINAL bank full operation prefix,domain and ordered answer roles.Use orthogonal_equal_unit only where a frame is declared,and degrees where an angle unit is declared.Integer fractions retain/1.Do not invent parameters or alter original bilingual sources.

Step identifiers and dependencies

Rule: R59_EXACT_family_domain_FULLprefix_operation_and_answer_roles · Uses: G001

S002 · calculation

Before

Angle ORIGINAL ordered prefix0 := sum(0, 22)

After

Angle ORIGINAL ordered prefix0 = 22

Conditions: none

Substitute exact ORIGINAL roles,without floating approximation.SAFE bounds raw inputs only;derived integers/rationals are unbounded and do not inherit another bank component cap.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · calculation

Before

Angle ORIGINAL ordered prefix1 := sum(22, 90)

After

Angle ORIGINAL ordered prefix1 = 112

Conditions: none

Substitute exact ORIGINAL roles,without floating approximation.SAFE bounds raw inputs only;derived integers/rationals are unbounded and do not inherit another bank component cap.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S002

S004 · calculation

Before

Angle ORIGINAL ordered prefix2 := sum(112, 23)

After

Angle ORIGINAL ordered prefix2 = 135

Conditions: none

Substitute exact ORIGINAL roles,without floating approximation.SAFE bounds raw inputs only;derived integers/rationals are unbounded and do not inherit another bank component cap.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S003

S005 · calculation

Before

Angle ORIGINAL target minus total := sub(180, 135)

After

Angle ORIGINAL target minus total = 45

Conditions: none

Substitute exact ORIGINAL roles,without floating approximation.SAFE bounds raw inputs only;derived integers/rationals are unbounded and do not inherit another bank component cap.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S004

S006 · implies

Before

source roles = [[22, 90, 23], 180]

After

derived = [[22, 112, 135], Yes, 45]

Conditions: none

The flag tests total<=180,NOT total<=target.With target90,total100 may have flagYes and remainder-10.Each raw part is within0..180;an accumulated540 is legal arithmetic but not an angle in this entry.Keep original prefix order without sorting/wrapping.

Step identifiers and dependencies

Rule: Angle_THREE_original_prefixes_budget180_NOT_target_threshold · Uses: G001, S005

Reverse checks

  • S006 · premise_and_result_audit — Reverse-check this step against the ORIGINAL data,indices and premises,without claiming the conclusion uniquely recovers the inputs.Finite exact checking,independent review,formal proof and publication clearance remain separate.
  • S005 · premise_and_result_audit — Recompute Angle ORIGINAL target minus total with exact rational arithmetic, not rounded decimals.
  • S004 · premise_and_result_audit — Recompute Angle ORIGINAL ordered prefix2 with exact rational arithmetic, not rounded decimals.
  • S003 · premise_and_result_audit — Recompute Angle ORIGINAL ordered prefix1 with exact rational arithmetic, not rounded decimals.
  • S002 · premise_and_result_audit — Recompute Angle ORIGINAL ordered prefix0 with exact rational arithmetic, not rounded decimals.
  • S001 · premise_and_result_audit — Reverse-check this step against the ORIGINAL data,indices and premises,without claiming the conclusion uniquely recovers the inputs.Finite exact checking,independent review,formal proof and publication clearance remain separate.

Result

([22, 112, 135], Yes, 45)

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: 186a2b9d640ce7209a6e50190b1752a3092a0a7e9a78acea3c581444913d255e
  • candidate record SHA-256: 0bc318ed21c33d637317364896b1170e4ec0a14a4bc58e28a4e7c61ac40881df
  • semantic review receipt SHA-256: 4c93dea3956f58509e20b3b8bbbf716dbc340b424a2a5177bc04aba9e8ea9ec5
  • question-first witness SHA-256: a5e56e0d64d622d7202840cef7019839c5a99244c602694190779155207dafdf
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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