Proof of `The Noether–Lefschetz window of a surface in ℙ³ and the sequence A005581` (3rd statement)

groundedproofs/Lax894236Proofs/NoetherLefschetzWindow.lean · lax-894236

What this proof establishes

no assumptions

thm✓Lax894236.NoetherLefschetzWindow (3rd statement)

Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.

Read the Lean proof on GitHub

Description

The same induction, started at $m = 4$ .