Identifier
F:no-integer-square-is-minus-one
Proof route
smt-term-level
External status
proved
Axiom footprint
axeyum-ir.integer-arithmetic-semantics, axeyum-solver.single-variable-polynomial-collector, negative-discriminant-quadratic-root-theorem

Recorded description

There is no integer x with x * x = -1.

Formal statement
(assert (forall ((x Int)) (not (= (* x x) (- 1)))))

Dependencies

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Direct dependencies appear to the left. The current fact is in the center. Facts that depend directly on it appear to the right. Current fact
0 direct dependencies 0 direct dependents

Evidence

autogenesis-operation-0cb40006d9fc2a83

Kind
unsat-certificate
Status
checked

Supports: There is no integer x with x * x = -1.

Checker command
python3 scripts/check-autogenesis-fact-operation.py --fact artifacts/facts/F-no-integer-square-is-minus-one.json
Evidence notes

Derived from a clean-commit typed execution receipt. The registered fact-operation checker replays the exact source artifact and requires its fresh-arena certified result; no caller-authored route, footprint, checker, or shell command is accepted.

Provenance

{
  "date": "2026-08-17",
  "established_by": "axeyum-autogenesis execution 87a53dd4bc892ad6da1331fb41d5afba732d80485037b4ed5b1f33c387f9f519",
  "prior_art": [
    {
      "date": "2026-08-17",
      "establishes": "the proposition is valid",
      "oracle": "z3 -smt2 artifacts/facts/smt2/neg-no-integer-square-is-minus-one.smt2",
      "result": "unsat"
    }
  ],
  "source": "authored by the skolem-cert lane as the replacement negative control for scripts/check-smt-evidence-certified.py; statement written here, not copied"
}