Mathlib v3 is deprecated. Go to Mathlib v4

Commit 2022-11-16 05:07 17a9f8f7

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chore(*): golf (#17558) Golfing part of #17553

Estimated changes

Modified src/data/finsupp/fin.lean

modified theorem finsupp.cons_succ

modified theorem finsupp.cons_zero

modified theorem finsupp.tail_apply

Modified src/linear_algebra/basic.lean

Modified src/order/well_founded_set.lean

Modified src/set_theory/cardinal/basic.lean