# Question 33292: A Selected Zero Vector Gives a Nontrivial Zero Relation [Return to catalogue page 167](https://ocme.evemisslab.com/en/questions/page/167/) [← Question derivation index](https://ocme.evemisslab.com/en/questions/) · [Original question batch](https://ocme.evemisslab.com/en/practice/batch-20261013-advance-20261025-r04-linear-independence-basis-foundations/#q-20261013-advance-20261025-r04-linear-independence-basis-0042) 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. R0065-33292 · q-20261013-advance-20261025-r04-linear-independence-basis-0042 ## Original question and givens Deepen only the existing explicit finite-coordinate basis semantics, preserving vector and coefficient order. No new dimension or change-of-basis theorem is inferred. Coordinate uniqueness is used only after qualifying a nonzero-determinant ordered R² basis. vectors=[[1, 4], [0, 0], [1, 1]], selected zero-based index=1. Give (vectors,index,selected vector,is it zero?,coefficient list with 1 at this index and 0 elsewhere,valid dependence certificate?). If the selected vector is not zero, retain the proposed list but report No. - G001 — Deepen only the existing explicit finite-coordinate basis semantics, preserving vector and coefficient order. No new dimension or change-of-basis theorem is inferred. Coordinate uniqueness is used only after qualifying a nonzero-determinant ordered R² basis. vectors=[[1, 4], [0, 0], [1, 1]], selected zero-based index=1. Give (vectors,index,selected vector,is it zero?,coefficient list with 1 at this index and 0 elsewhere,valid dependence certificate?). If the selected vector is not zero, retain the proposed list but report No. ## 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. - [mko-linear-independence-basis](https://ocme.evemisslab.com/en/mko/mko-linear-independence-basis/) ## Step-by-step derivation S001 · impliesBefore source roles = [qf-mod25-basisdeep-zero-vector-dependence-certificate, basisdeep-zero-vector-dependence-certificate, R2_basis_density_without_dimension_extension, []] After derived = [[vectors, index, selected, is_zero, nontrivial_coefficients, THIS_certificate]] Conditions: none MOD25 uses LOCAL hyphens/named domains,legacy matrices underscores/reals;BASE logic acquires no domain/op.Output tuples,matrices,numeric fields and fraction texts follow THIS source,not a universal/1 rule.Retain originals/English/AST/status. Step identifiers and dependenciesRule: R65_SOURCE_bank_keys_operation_domain_ordered_output_roles · Uses: G001 S002 · impliesBefore source roles = [zero certificate ORIGINAL vector0, [1, 4]] After derived = [[1, 4]] Conditions: none RAW vectors are nonempty with1..6 components bounded±1000.ONLY the R² coordinate task adds dimension2;do not infer an extra2D gate elsewhere from a domain label. Step identifiers and dependenciesRule: Basis_RAW_vector_1to6_components_bound1000 · Uses: G001, S001 S003 · impliesBefore source roles = [zero certificate ORIGINAL vector1, [0, 0]] After derived = [[0, 0]] Conditions: none RAW vectors are nonempty with1..6 components bounded±1000.ONLY the R² coordinate task adds dimension2;do not infer an extra2D gate elsewhere from a domain label. Step identifiers and dependenciesRule: Basis_RAW_vector_1to6_components_bound1000 · Uses: G001, S002 S004 · impliesBefore source roles = [zero certificate ORIGINAL vector2, [1, 1]] After derived = [[1, 1]] Conditions: none RAW vectors are nonempty with1..6 components bounded±1000.ONLY the R² coordinate task adds dimension2;do not infer an extra2D gate elsewhere from a domain label. Step identifiers and dependenciesRule: Basis_RAW_vector_1to6_components_bound1000 · Uses: G001, S003 S005 · calculationBefore zero proposed nontrivial relation ORIGINAL vector0 coordinate0 weighted term := mul(0, 1) After zero proposed nontrivial relation ORIGINAL vector0 coordinate0 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S004 S006 · calculationBefore zero proposed nontrivial relation ORIGINAL vector1 coordinate0 weighted term := mul(1, 0) After zero proposed nontrivial relation ORIGINAL vector1 coordinate0 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S005 S007 · calculationBefore zero proposed nontrivial relation ORIGINAL vector2 coordinate0 weighted term := mul(0, 1) After zero proposed nontrivial relation ORIGINAL vector2 coordinate0 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S006 S008 · calculationBefore zero proposed nontrivial relation ORIGINAL coordinate0 all terms sum := sum(0, 0, 0) After zero proposed nontrivial relation ORIGINAL coordinate0 all terms sum = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S007 S009 · impliesBefore source roles = [zero proposed nontrivial relation, 0, [[1, 4], [0, 0], [1, 1]], [0, 1, 0]] After derived = [[0, 0, 0], 0] Conditions: none For EACH coordinate retain EVERY coefficient*vector component before summing.Do not recap derived reconstructions as RAW vector/coefficient inputs. Step identifiers and dependenciesRule: Basis_EACH_coordinate_complete_linear_combination_no_derived_raw_cap · Uses: G001, S008 S010 · calculationBefore zero proposed nontrivial relation ORIGINAL vector0 coordinate1 weighted term := mul(0, 4) After zero proposed nontrivial relation ORIGINAL vector0 coordinate1 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S009 S011 · calculationBefore zero proposed nontrivial relation ORIGINAL vector1 coordinate1 weighted term := mul(1, 0) After zero proposed nontrivial relation ORIGINAL vector1 coordinate1 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S010 S012 · calculationBefore zero proposed nontrivial relation ORIGINAL vector2 coordinate1 weighted term := mul(0, 1) After zero proposed nontrivial relation ORIGINAL vector2 coordinate1 weighted term = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S011 S013 · calculationBefore zero proposed nontrivial relation ORIGINAL coordinate1 all terms sum := sum(0, 0, 0) After zero proposed nontrivial relation ORIGINAL coordinate1 all terms sum = 0 Conditions: none Use ORIGINAL operands/order for exact arithmetic.Rational operations separately enforce this MOD25 SOURCE pre-reduction envelope.Do not globally cap every derived integer at one million or use floating approximations. Step identifiers and dependenciesRule: exact_rational_arithmetic · Uses: G001, S012 S014 · impliesBefore source roles = [zero proposed nontrivial relation, 1, [[1, 4], [0, 0], [1, 1]], [0, 1, 0]] After derived = [[0, 0, 0], 0] Conditions: none For EACH coordinate retain EVERY coefficient*vector component before summing.Do not recap derived reconstructions as RAW vector/coefficient inputs. Step identifiers and dependenciesRule: Basis_EACH_coordinate_complete_linear_combination_no_derived_raw_cap · Uses: G001, S013 S015 · impliesBefore source roles = [[[1, 4], [0, 0], [1, 1]], 1, [0, 0]] After derived = [[0, 1, 0], [0, 0], Yes] Conditions: none The coefficient is1 at THIS index and0 elsewhere,so the list is nontrivial and its combination equals the selected vector.ONLY a zero selection certifies dependence.No does not establish whole-family independence. Step identifiers and dependenciesRule: Basis_ZERO_selected_vector_nontrivial_e_index_relation_ONLY_THIS_certificate · Uses: G001, S014 ## Reverse checks - S015 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S014 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S013 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL coordinate1 all terms sum with exact rational arithmetic, not rounded decimals. - S012 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector2 coordinate1 weighted term with exact rational arithmetic, not rounded decimals. - S011 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector1 coordinate1 weighted term with exact rational arithmetic, not rounded decimals. - S010 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector0 coordinate1 weighted term with exact rational arithmetic, not rounded decimals. - S009 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S008 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL coordinate0 all terms sum with exact rational arithmetic, not rounded decimals. - S007 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector2 coordinate0 weighted term with exact rational arithmetic, not rounded decimals. - S006 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector1 coordinate0 weighted term with exact rational arithmetic, not rounded decimals. - S005 · premise_and_result_audit — Recompute zero proposed nontrivial relation ORIGINAL vector0 coordinate0 weighted term with exact rational arithmetic, not rounded decimals. - S004 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S003 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S002 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. - S001 · premise_and_result_audit — Reverse-check ORIGINAL data,types,ordered roles,domain and premises;the conclusion need not uniquely recover its premises.Keep finite source candidates,independent review,formal proof and publication separate. ## Result ([[1, 4], [0, 0], [1, 1]], 1, [0, 0], Yes, [0, 1, 0], 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: 7b65142f3a6478a27cbe65acb7334ae24246ea53b2435895bdb6853582e3a23c - candidate record SHA-256: 92a9742ebf22ef114e79627aa18ec780b545b3bc4b8be8fbc16365f0c575c1ec - semantic review receipt SHA-256: 92bb5fa69818f30cd2806d74a26bd5ede6c48c80d2ecc3d31a5130d4ad7666b6 - question-first witness SHA-256: 012b5aa905280d616be49aa9462daaa73bf7f6247d0a796e78bc5bcd24e6bd00 - Lean: NOT_RUN · human review: NOT_PERFORMED [Same-source full JSON](https://ocme.evemisslab.com/data/question-derivations/questions/q-20261013-advance-20261025-r04-linear-independence-basis-0042.json)