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Question 29087: Ordered-Pair Complex Subtraction

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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R0057-29087 · q-20261013-advance-20261022-r03-complex-number-0037

Original question and givens

Represent a complex number a+b*i by the ordered integer pair [a,b], with i²=−1. Keep the real component first and the imaginary coefficient second; graph appearance supplies no missing values. No complex division or polar form is used here. left=[-1, 1], right=[-1, 13]. Give (left,right,[left real−right real,left imaginary coefficient−right imaginary coefficient]).

  • G001 — Represent a complex number a+b*i by the ordered integer pair [a,b], with i²=−1. Keep the real component first and the imaginary coefficient second; graph appearance supplies no missing values. No complex division or polar form is used here. left=[-1, 1], right=[-1, 13]. Give (left,right,[left real−right real,left imaginary coefficient−right imaginary coefficient]).

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-str22-complex-subtraction, complex-subtraction]

After

derived = [[left, right, result]]

Conditions: none

Use this bank exact ordered tuple and hyphenated operation.Rational outputs reduce with positive denominators and OMIT/1 for integers,unlike the preceding legacy bank.Do not change original bilingual snapshots or meaning.

Step identifiers and dependencies

Rule: STR22_exact_interface_and_source_ORDERED_tuple_roles · Uses: G001

S002 · calculation

Before

Complex ORIGINAL sub coordinate0 := sub(-1, -1)

After

Complex ORIGINAL sub coordinate0 = 0

Conditions: none

Use the ORIGINAL operands exactly,without floating point.Only the declared SOURCE rational operations use their profile;additional integer teaching algebra adds no new input-domain restriction.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S001

S003 · calculation

Before

Complex ORIGINAL sub coordinate1 := sub(1, 13)

After

Complex ORIGINAL sub coordinate1 = -12

Conditions: none

Use the ORIGINAL operands exactly,without floating point.Only the declared SOURCE rational operations use their profile;additional integer teaching algebra adds no new input-domain restriction.

Step identifiers and dependencies

Rule: exact_rational_arithmetic · Uses: G001, S002

S004 · implies

Before

source roles = [complex-subtraction, [-1, 1], [-1, 13]]

After

derived = [[0, -12]]

Conditions: none

From(a+bi)±(c+di)=(a±c)+(b±d)i,combine matching components.Real stays first;subtraction is left-right,not an absolute difference.

Step identifiers and dependencies

Rule: Complex_ordered_real_imaginary_components_and_operand_direction · Uses: G001, S003

Reverse checks

  • S004 · premise_and_result_audit — Reverse-check every ORIGINAL coordinate/table entry/alignment and strict premise,not just the final answer.Keep finite candidates,general reasoning,formal proof and publication responsibilities distinct.
  • S003 · premise_and_result_audit — Recompute Complex ORIGINAL sub coordinate1 with exact rational arithmetic, not rounded decimals.
  • S002 · premise_and_result_audit — Recompute Complex ORIGINAL sub coordinate0 with exact rational arithmetic, not rounded decimals.
  • S001 · premise_and_result_audit — Reverse-check every ORIGINAL coordinate/table entry/alignment and strict premise,not just the final answer.Keep finite candidates,general reasoning,formal proof and publication responsibilities distinct.

Result

([-1, 1], [-1, 13], [0, -12])

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: 7f36d6ebd85d0e0dec1a0c5b119deb751be5e78eb05dd9c58febd92754ed1b0d
  • candidate record SHA-256: 6de1e0e1cb31ad7ccf1d44a9b23e713610145fabe22054fd973f5cfd99fcdd13
  • semantic review receipt SHA-256: db445bb0caa8a249fcf78eadd2550b49b820e279cc80b2327f0d757d3ae920b6
  • question-first witness SHA-256: 58d12a50ea9943c50b65927607347101b1ddaf692d62e091f2cae8a9f0362eb5
  • Lean: NOT_RUN · human review: NOT_PERFORMED
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