Artifact · open
Outcome-blind mutation of Nat.fib_eq_zero
This page records one proposition and the evidence attached to it. Text from the source ledger is shown as record data.
- Identifier
- F:ml430-mutation-1432b2277cf2cc26c1d11cd6
- Proof route
- Not assigned
- External status
- unknown
- Axiom footprint
- Empty
Recorded description
A `boundary-widening-biconditional` mutation of the pinned source proposition `Nat.fib_eq_zero`.
∀ {n : ℕ}, Nat.fib n = 0 ↔ n = 0 ∨ n = 1Dependencies
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0 direct dependencies 0 direct dependents
Evidence
Provenance
{
"date": "2026-08-18",
"established_by": "not established in this ledger",
"source": "outcome-blind `boundary-widening-biconditional` mutation of Nat.fib_eq_zero"
}