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R0065-33107 · q-20261006-advance-20261007-r01-matrix-0057
Over R, A=[[-6, -7], [-4, -5]] and B=[[6, 7], [4, 5]] have the same dimensions. Find A+B as a nested list of rows.
G001 — Over R, A=[[-6, -7], [-4, -5]] and B=[[6, 7], [4, 5]] have the same dimensions. Find A+B as a nested list of rows.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 = [qf-matrix-addition, matrix_addition, reals, []]
After
derived = [[nested_ROW_matrix]]
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.
Rule: R65_SOURCE_bank_keys_operation_domain_ordered_output_roles · Uses: G001
Before
source roles = [A ORIGINAL, [[-6, -7], [-4, -5]]]
After
derived = [2, 2]
Conditions: none
THIS bank allows1..5 by1..5 matrices,not the R64 2×2 restriction.Type EVERY raw SAFE cell,including unused shape/entry cells.Keep original row order.
Rule: Matrix_RAW_rectangular_1to5_ALL_SAFE_entries_even_unused · Uses: G001, S001
Before
source roles = [B ORIGINAL, [[6, 7], [4, 5]]]
After
derived = [2, 2]
Conditions: none
THIS bank allows1..5 by1..5 matrices,not the R64 2×2 restriction.Type EVERY raw SAFE cell,including unused shape/entry cells.Keep original row order.
Rule: Matrix_RAW_rectangular_1to5_ALL_SAFE_entries_even_unused · Uses: G001, S002
Before
Matrix sum ORIGINAL entry0,0 := sum(-6, 6)
After
Matrix sum ORIGINAL entry0,0 = 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.
Rule: exact_rational_arithmetic · Uses: G001, S003
Before
Matrix sum ORIGINAL entry0,1 := sum(-7, 7)
After
Matrix sum ORIGINAL entry0,1 = 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.
Rule: exact_rational_arithmetic · Uses: G001, S004
Before
Matrix sum ORIGINAL entry1,0 := sum(-4, 4)
After
Matrix sum ORIGINAL entry1,0 = 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.
Rule: exact_rational_arithmetic · Uses: G001, S005
Before
Matrix sum ORIGINAL entry1,1 := sum(-5, 5)
After
Matrix sum ORIGINAL entry1,1 = 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.
Rule: exact_rational_arithmetic · Uses: G001, S006
Before
source roles = [[[-6, -7], [-4, -5]], [[6, 7], [4, 5]]]
After
derived = [[[0, 0], [0, 0]]]
Conditions: none
Add EVERY corresponding entry ONLY at equal shapes.Derived sums may exceed SAFE;do not reparse as a RAW matrix.No zero-padding or broadcasting.
Rule: Matrix_ADDITION_all_corresponding_entries_NO_padding_or_raw_recap · Uses: G001, S007
S008 · 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.S007 · premise_and_result_audit — Recompute Matrix sum ORIGINAL entry1,1 with exact rational arithmetic, not rounded decimals.S006 · premise_and_result_audit — Recompute Matrix sum ORIGINAL entry1,0 with exact rational arithmetic, not rounded decimals.S005 · premise_and_result_audit — Recompute Matrix sum ORIGINAL entry0,1 with exact rational arithmetic, not rounded decimals.S004 · premise_and_result_audit — Recompute Matrix sum ORIGINAL entry0,0 with exact rational arithmetic, not rounded decimals.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.[[0, 0], [0, 0]]
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: a9127f962d0938c749a3c84848805dd8b6d1e130f1e2be473b627f466b5ea497candidate record SHA-256: a19659de3d30be44a5036bae3d1698ff5b950d20de75666363fab22231797385semantic review receipt SHA-256: 92bb5fa69818f30cd2806d74a26bd5ede6c48c80d2ecc3d31a5130d4ad7666b6question-first witness SHA-256: 012b5aa905280d616be49aa9462daaa73bf7f6247d0a796e78bc5bcd24e6bd00Lean: NOT_RUN · human review: NOT_PERFORMED