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~~~~
gap> S:=SymmetricInverseMonoid(3);
gap> DisplaySemigroup(S);
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `Disp…
ghost updated
5 years ago
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I'm not sure if this is worth a clarification, but I've had a bit of head scratching with this one.
If you create the BoundedSemiLattice[Int] instance in a worksheet outside the BoundedSemiLattice …
oker1 updated
4 years ago
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Some things which could be nicer about the file of monoids and groups:
* [x] Split up the file `Monoids_and_Groups.v` in two or more parts
* [x] Define kernels and images for monoids groups, not jus…
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- [解説参考](https://qiita.com/AkariLuminous/items/32cbf5bc3ffb2f84a898)
- [セグ木に載せるやり方まとめ](https://scrapbox.io/magurofly/%E3%82%BB%E3%82%B0%E6%9C%A8%E3%81%AB%E8%BC%89%E3%81%9B%E3%82%8B%E3%82%84%E3%82%8A%…
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Well, it's true, there is no such variable that I know of.
``` idris
module CopumpkinStyleFingerTrees
import Prelude.Algebra
import Classes.Verified
-- %default total
data Digit : Type -> Type whe…
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I've written variations of the following types enough times to now raise an issue:
```haskell
newtype Mean a = Mean {unMean :: StatM.MeanKBN}
deriving stock (Eq, Generic)
deriving newtyp…
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Currently the `empty` of [`Monoid`](https://github.com/rpominov/static-land/blob/master/docs/spec.md#monoid) is specified as a nullary function rather than a plain value. Is there a plausible use cas…
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http://apfelmus.nfshost.com/articles/monoid-fingertree.html
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> Fascinating how these next proofs are essentially the `cancel` and `elim` (left and right) combinators in `Categories.Morphism.Reasoning` !
_Originally posted by @JacquesCarette in https://github…
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Reproduction (on mathlib 8fd86366a4472716b25100e831a2ba0f266b28b8)
```lean
import linear_algebra.basic
variables {R : Type*} {M : Type*} {M₂ : Type*} {M₃ : Type*} {M₄ : Type*}
variables [semirin…