[Merged by Bors] - chore(combinatorics/simple_graph): remove bad simp attribute #6736
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b-mehta
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eric-wieser
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Do we want to add @[symm] lemma edge_symm' (u v : V) : G.adj u v → G.adj v u := λ x, G.sym x as @kmill suggested on Zulip?
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Done, thanks! |
kmill
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Mar 17, 2021
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As in https://leanprover.zulipchat.com/#narrow/stream/113488-general/topic/symmetry.20fails.20if.20simple.20graph.20is.20imported.