Use mode=premature_euler, modulus=53, original a=1. Give (mode, modulus, normalized_class, unsupported_domain_or_method_certificate, boundary).
G001 — Use mode=premature_euler, modulus=53, original a=1. Give (mode, modulus, normalized_class, unsupported_domain_or_method_certificate, boundary).
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.
Keep the source snapshot while listing ordered fields without JavaScript.Radius uses its original mode to select6 or11 fields without padding;distinguish nonclaims from actual negations.
ORIGINAL mode=premature_euler;modulus=53,a=1,normalized class=1
After
unsupported_domain_or_method_certificate fixed No;input IS valid odd-prime/nonzero but Euler method not yet established here
Conditions: none
For premature_euler,the No neither refutes Euler criterion nor puts a valid input out of domain.Modulus2/composite cases have a domain restriction.No Jacobi or other extension is silently adopted.
S006 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
S005 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
S004 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
S003 · premise_and_result_audit — Recompute Legendre ORIGINAL boundary class ORIGINAL signed value minus multiple with exact rational arithmetic, not rounded decimals.
S002 · premise_and_result_audit — Recompute Legendre ORIGINAL boundary class quotient times modulus with exact rational arithmetic, not rounded decimals.
S001 · premise_and_result_audit — Check against the original data and this step's premises; a one-way implication is not an equivalence.
Result
(premature_euler, 53, 1, No, classification_must_come_from_the_complete_square_table_not_the_later_Euler_criterion)
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.