[Merged by Bors] - chore(Data/Fin): generalize Nontrivial instance to NeZero

[eric-wieser]

This makes the statement a bit weird, but we use NeZero frequently in downstream statements, and this makes it available.

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[github-actions]

PR summary a9677b456f

Import changes for modified files

Dependency changes

File	Base Count	Head Count	Change
Mathlib.Data.Fin.Basic	338	337	-1 (-0.30%)

Import changes for all files

Files

Import difference

47 files Mathlib.Algebra.Group.Fin.Tuple Mathlib.Algebra.Group.Pointwise.Set.ListOfFn Mathlib.Algebra.Group.Subgroup.MulOppositeLemmas Mathlib.AlgebraicTopology.SimplexCategory.Defs Mathlib.CategoryTheory.Limits.Shapes.Preorder.Fin Mathlib.Computability.Tape Mathlib.Control.Random Mathlib.Data.Countable.Basic Mathlib.Data.Fin.Basic Mathlib.Data.Fin.FlagRange Mathlib.Data.Fin.Rev Mathlib.Data.Fin.SuccPred Mathlib.Data.Fin.Tuple.Basic Mathlib.Data.Fin.Tuple.Curry Mathlib.Data.Fin.Tuple.Embedding Mathlib.Data.Fin.Tuple.Take Mathlib.Data.Fin.VecNotation Mathlib.Data.List.ChainOfFn Mathlib.Data.List.FinRange Mathlib.Data.List.NodupEquivFin Mathlib.Data.List.OfFn Mathlib.Data.List.Sort Mathlib.Data.List.Sublists Mathlib.Data.Multiset.Antidiagonal Mathlib.Data.Multiset.Powerset Mathlib.Data.Multiset.Sort Mathlib.Data.Num.Bitwise Mathlib.Data.Rat.Encodable Mathlib.Data.Sym.Basic Mathlib.Data.Vector.Basic Mathlib.Data.Vector.MapLemmas Mathlib.Data.Vector.Mem Mathlib.Data.Vector.Snoc Mathlib.Data.Vector.Zip Mathlib.GroupTheory.FreeGroup.Reduce Mathlib.Logic.Encodable.Basic Mathlib.Logic.Encodable.Lattice Mathlib.Logic.Equiv.Fin.Basic Mathlib.Logic.Function.FromTypes Mathlib.Logic.Function.OfArity Mathlib.Logic.Small.List Mathlib.Order.Fin.Basic Mathlib.Order.Fin.Finset Mathlib.Order.Fin.Tuple Mathlib.Order.Interval.Set.Fin Mathlib.SetTheory.ZFC.Basic Mathlib.Tactic.DeriveEncodable

-1

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Declarations diff

No declarations were harmed in the making of this PR! 🐙

You can run this locally as follows

## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>

The doc-module for script/declarations_diff.sh contains some details about this script.

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No changes to technical debt.

You can run this locally as

./scripts/technical-debt-metrics.sh pr_summary

• The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
• The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

[jsm28]

maintainer merge

[github-actions]

🚀 Pull request has been placed on the maintainer queue by jsm28.

[b-mehta]

bors merge

[mathlib-bors]

Pull request successfully merged into master.

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