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TheoremRecheck

Struct TheoremRecheck 

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pub struct TheoremRecheck {
    pub rechecks: bool,
    pub two_kernel_agreement: bool,
    pub error: Option<String>,
    pub axioms: AxiomUsage,
}
Expand description

The outcome of independently re-checking a TheoremCertificate.

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§rechecks: bool

Whether the proof term type-checks to the claimed goal in the rebuilt context and rests on nothing ADMITTED. This is the load-bearing verdict — established by TYPE-CHECKING the term, never by re-running proof search.

The second conjunct is the part Lean leaves to the reader. A sorry-tainted proof type-checks, both kernels agree on it, and a caller that asks only “did it check?” is told yes. So the taint is folded into THIS field rather than offered beside it: there is no reading of rechecks == true under which the proof rests on an admission, and no command anyone has to remember to run.

§two_kernel_agreement: bool

The strongest agreement reached: true when the SECOND, independent de Bruijn kernel (double_check) also verified the term to a definitionally-equal type (the full de Bruijn criterion). false when the term type-checks under the main kernel but sits outside the re-checker’s covered fragment (still a valid proof, honestly single-checked) or fails to re-check at all.

§error: Option<String>

The reason a re-check failed, when it did.

§axioms: AxiomUsage

Every axiom the proof rests on, TRANSITIVELY — our #print axioms, re-derived against the trusted base this check rebuilt rather than against whatever the minting side disclosed.

Populated even when the re-check FAILS, and deliberately: “which assumptions did this thing want?” is exactly the question a rejected certificate raises, and answering it is most of the diagnosis.

EMPTY on exactly two refusals, and in both the honest answer is “no report”: a version mismatch means the names were not checked against THIS base at all, and a delta that REDEFINES a trusted constant means a report naming dne would name the reader’s dne and not the certificate’s — which is the misreading that refusal exists to prevent.

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impl Clone for TheoremRecheck

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fn clone(&self) -> TheoremRecheck

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TheoremRecheck

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for TheoremRecheck

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fn eq(&self, other: &TheoremRecheck) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for TheoremRecheck

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.