Checked fact 179418 Oct 2026Research

The manual says newly elaborated inductive types and definitions 'must be checked by the kernel to guard against potential bugs in elaboration'.

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The exact words it rests on

Before new inductive types or definitions are added to the environment by the command or term elaborators, they must be checked by the kernel to guard against potential bugs in elaboration.

What the source said when we opened it, on 18 Oct 2026.

The source

Lean reference: Elaboration and Compilation
Lean FRO / Lean project

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Checked

Checked by the notis newsroom on 18 Oct 2026, against the source above.

In the story

How Lean checks an AI-written proof, and where that stops 18 Oct 2026

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In a sentence

“The manual says newly elaborated inductive types and definitions 'must be checked by the kernel to guard against potential bugs in elaboration'.” ai notis, checked 18 Oct 2026. Source: Lean reference: Elaboration and Compilation (Lean FRO / Lean project). https://ainotis.com/c/1794

As a reference (APA style)

ai notis. (2026, October 18). The manual says newly elaborated inductive types and definitions 'must be checked by the kernel to guard against potential bugs in elaboration' [Checked claim 1794]. ai notis. https://ainotis.com/c/1794

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