`pp.analyze` should imply `pp.proofs`
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Description
Prerequisites
Please put an X between the brackets as you perform the following steps:
- Check that your issue is not already filed:
https://github.com/leanprover/lean4/issues - Reduce the issue to a minimal, self-contained, reproducible test case.
Avoid dependencies to Mathlib or Batteries. - Test your test case against the latest nightly release, for example on
https://live.lean-lang.org/#project=lean-nightly
(You can also use the settings there to switch to “Lean nightly”)
Description
MWE:
/--
error: unsolved goals
α : Prop
P : α → Prop
a : α
⊢ P ⋯
-/
#guard_msgs in
set_option pp.analyze true in
example (α : Prop) (P : α → Prop) (a : α) : P (id a) := by {}
/--
error: unsolved goals
α : Prop
P : α → Prop
a : α
⊢ P (id a)
-/
#guard_msgs in
set_option pp.analyze true in
set_option pp.proofs true in
example (α : Prop) (P : α → Prop) (a : α) : P (id a) := by {}
Expected behavior: Both versions output ... ⊢ P (id a).
Context
I hit this bug in aesop?, where I use pp.analyze to output tactic scripts that can be read back by Lean.
Versions
"4.15.0-nightly-2024-11-25"
Impact
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the two #guard_msgs examples from the issue against the reported or current Lean nightly and compare the pp.analyze output with and without pp.proofs. Trace the pretty-printing option handling implicated by the MWE; done means both versions preserve P (id a) rather than shortening it to P ⋯.
Written by the indexing model from the issue text.
Assessment
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100