Lax Lean Archive

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Proof of `The Grassmannian of k-dimensional subspaces is Polish` (2nd statement)

groundedproofs/Lax606786Proofs/Grassmannian.lean · lax-606786

What this proof establishes

no assumptions

thm✓Lax606786.GrassmannianPolish (2nd 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 GitLab

Description

Spans of kk-tuples from a countable dense set are dense.