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feat: add the Hopf S⁶ complex-structure problem - #557

#557

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kim-em merged 3 commits into

leanprover:mainleanprover/lean-eval:mainfrom

Deicyde:hopf-s6-challengeDeicyde/lean-eval:hopf-s6-challengeCopy head branch name to clipboard

Sep 24, 2026

Conversation Commits3 (3)Checks Files changed

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feat: add the Hopf S⁶ complex-structure problem#557
kim-em merged 3 commits into
leanprover:mainfrom
Deicyde:hopf-s6-challenge

feat: activate Hopf S6 in draft v2 set

6227fcf

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"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

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