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[Merged by Bors] - feat: smul_set_disjoint_iff #10703

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[Merged by Bors] - feat: smul_set_disjoint_iff #10703

wants to merge 2 commits into from

Commits on Feb 18, 2024

  1. feat: smul_set_disjoint_iff 

    Add a `simp` lemma about the group action on a set:
`Disjoint (a • s) (a • t) ↔ Disjoint s t`.

From AperiodicMonotilesLean.
    @jsm28
    jsm28 committed Feb 18, 2024
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  2. Update Mathlib/Data/Set/Pointwise/SMul.lean 

    Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
    @jsm28 @github-actions
    jsm28 and github-actions[bot] committed Feb 18, 2024
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