fix: IndPredBelow should not add auxiliary declarations containing sorry
#4563
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…`sorry` Issue #4535 is being affected by a bug in the structural inductive predicate termination checker (`IndPred.lean`). This module did not exist in Lean 3, and it is buggy in Lean 4. In the given example, it introduces an auxiliary declaration containing a `sorry`, and the fails. This PR ensures this kind of declaration is not added to the environment. Closes #4535 TODO: we need a new maintainer for the `IndPred.lean`.
github-actions
bot
added
the
toolchain-available
|
Mathlib CI status (docs):
|
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Issue #4535 is being affected by a bug in the structural inductive predicate termination checker (
IndPred.lean). This module did not exist in Lean 3, and it is buggy in Lean 4. In the given example, it introduces an auxiliary declaration containing asorry, and the fails. This PR ensures this kind of declaration is not added to the environment.Closes #4535
TODO: we need a new maintainer for the
IndPred.lean.