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chromatic_polynomial

Chromatic polynomial in Lean4
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Chromatic Polynomial in Lean4

This is my first attempt at writing formal mathematics in Lean4. My goal is to define the chromatic polynomial of a simple graph, and then prove some elementary theorems about it.

  • Apache 2.0
  • 2 months ago
    Last updated on March 24, 2025 at 3:26:18PM
  • 4 stars

Lean

  • Commit 6fe1fcd (latest) builds on the recent leanprover/lean4:v4.20.0-rc5
    v4.20.0-rc5
  • Commit 6fe1fcd (latest) builds on the recent leanprover/lean4:v4.20.0-rc2
    v4.20.0-rc2
  • Commit 6fe1fcd (latest) builds on the recent leanprover/lean4:v4.19.0
    v4.19.0
  • Commit 6fe1fcd (latest) builds on the recent leanprover/lean4:v4.19.0-rc3
    v4.19.0-rc3
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.18.0
    v4.18.0
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.18.0-rc1
    v4.18.0-rc1
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.17.0
    v4.17.0
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.17.0-rc1
    v4.17.0-rc1
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.16.0
    v4.16.0
  • Commit 6fe1fcd (latest) builds on the old leanprover/lean4:v4.16.0-rc2
    v4.16.0-rc2
  • 18 more

Repository

anlucia/ChromaticPolynomial

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