leanprover-community/physlib

Remove `erw`s

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#385 创建于 2025年3月10日

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good first issuehelp-wanted

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描述

There are lots of erw [...] in PhysLean. These are slow, and thus it is beneficial for them to be removed.

To remove an erw [...] usually means changing the corresponding lemma to simp-normal form.

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