Use exact degrees for nondirected angles in [0,180], not a directed rotation or a measurement from a sketch. a=8. Give (is a≤90?, eligible complement 90−a or none, supplement 180−a).
G001 — Use exact degrees for nondirected angles in [0,180], not a directed rotation or a measurement from a sketch. a=8. Give (is a≤90?, eligible complement 90−a or none, supplement 180−a).
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.
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.
Angle ORIGINAL eligible complement90 minus a := sub(90, 8)
After
Angle ORIGINAL eligible complement90 minus a = 82
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.
Angle ORIGINAL supplement180 minus a := sub(180, 8)
After
Angle ORIGINAL supplement180 minus a = 172
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.
A nonnegative complement90-a is eligible ONLY for a<=90,including0 at a=90.For a>90 return none,not a negative angle.Compute the supplement180-a separately;0/180 boundaries are legal,and no diagram supplies values.
S004 · 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.
S003 · premise_and_result_audit — Recompute Angle ORIGINAL supplement180 minus a with exact rational arithmetic, not rounded decimals.
S002 · premise_and_result_audit — Recompute Angle ORIGINAL eligible complement90 minus a 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
(Yes, 82, 172)
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.