leanprover/lean-eval

Comparator-based Lean formal mathematics eval

Beginner friendly Everything

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8 open issues indexed

There's needs to be a way to submit with much higher memory limit Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

leanprover/lean-eval#642 · Opened Sep 17, 2026
New submission page is broken Open

Difficulty 3/5 1-2 days Newbie friendliness 64/100

leanprover/lean-eval#637 · 1 reaction · Opened Sep 13, 2026
Post-overhaul UX, performance, and cleanup triage Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

leanprover/lean-eval#634 · Opened Sep 13, 2026
Rewrite eval-problem markers through Lean's parser rather than a lexical scan Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

leanprover/lean-eval#551 · Opened Aug 21, 2026
formal-conjectures integration Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

leanprover/lean-eval#533 · 5 comments · 3 reactions · Opened Aug 17, 2026
A helper whose value depends on a hole is emitted into `ChallengeDeps`, so the workspace cannot build Open

Difficulty 4/5 3-5 days Newbie friendliness 68/100

leanprover/lean-eval#518 · 2 comments · 1 reaction · Opened Aug 7, 2026
Form-created submissions never reach the leaderboard (`intake` skipped ⇒ `record` skipped) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

leanprover/lean-eval#511 · Opened Aug 6, 2026
Generator drops top-level `universe` commands and `CoeFun` instances → generated workspace fails to build Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

leanprover/lean-eval#421 · Opened Jun 10, 2026

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