21 Open Issues Need Help Last updated: Jul 7, 2026

Open Issues Need Help

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good first issue

The math library of Lean 4

Lean
#lean4
good first issue t-analysis

The math library of Lean 4

Lean
#lean4
enhancement good first issue t-topology

The math library of Lean 4

Lean
#lean4
enhancement good first issue t-topology t-analysis

The math library of Lean 4

Lean
#lean4
good first issue t-analysis

The math library of Lean 4

Lean
#lean4
good first issue t-differential-geometry

The math library of Lean 4

Lean
#lean4

The math library of Lean 4

Lean
#lean4
enhancement good first issue t-topology t-analysis

The math library of Lean 4

Lean
#lean4
enhancement good first issue t-topology t-analysis

The math library of Lean 4

Lean
#lean4
Sperner's lemma 2 months ago
good first issue t-combinatorics t-analysis

The math library of Lean 4

Lean
#lean4
good first issue t-topology t-analysis t-euclidean-geometry

The math library of Lean 4

Lean
#lean4
good first issue

The math library of Lean 4

Lean
#lean4
good first issue t-analysis

The math library of Lean 4

Lean
#lean4
good first issue t-combinatorics

The math library of Lean 4

Lean
#lean4
Edge-connectivity 6 months ago
good first issue t-combinatorics

The math library of Lean 4

Lean
#lean4

The math library of Lean 4

Lean
#lean4
good first issue please-adopt

The math library of Lean 4

Lean
#lean4
enhancement good first issue t-analysis

The math library of Lean 4

Lean
#lean4
good first issue

The math library of Lean 4

Lean
#lean4
good first issue help-wanted please-adopt

The math library of Lean 4

Lean
#lean4
good first issue t-combinatorics

The math library of Lean 4

Lean
#lean4