Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2022-03-11 13:44 4dc4dc8b

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chore(topology/algebra/module/basic): cleanup variables and coercions (#12542) Having the "simple" variables in the lemmas statements rather than globally makes it easier to move lemmas around in future. This also mean lemmas like coe_comp can have their arguments in a better order, as it's easier to customize the argument order at the declaration. This also replaces a lot of (_ : M₁ → M₂)s with ⇑_ for brevity in lemma statements. No lemmas statements (other than argument reorders) or proofs have changed.

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