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Make the completion of Sym be its formal series ring. #40246

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@tscrim tscrim commented Jun 12, 2025

sage: s = SymmetricFunctions(ZZ).s()
sage: s.completion() is s.formal_series_ring()
False

since we forgot to override the alias.

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  • The title is concise and informative.
  • The description explains in detail what this PR is about.
  • I have linked a relevant issue or discussion.
  • I have created tests covering the changes.
  • I have updated the documentation and checked the documentation preview.

⌛ Dependencies

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tscrim commented Jun 12, 2025

@mantepse Easy fix and should be easy to review.

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Documentation preview for this PR (built with commit b0f5ab2; changes) is ready! 🎉
This preview will update shortly after each push to this PR.

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good. Arigato !

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tscrim commented Jun 16, 2025

Merci!

vbraun pushed a commit to vbraun/sage that referenced this pull request Jun 17, 2025
sagemathgh-40246: Make the completion of Sym be its formal series ring.
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

```
sage: s = SymmetricFunctions(ZZ).s()
sage: s.completion() is s.formal_series_ring()
False
```
since we forgot to override the alias.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [x] I have created tests covering the changes.
- [x] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#40246
Reported by: Travis Scrimshaw
Reviewer(s): Frédéric Chapoton
vbraun pushed a commit to vbraun/sage that referenced this pull request Jun 18, 2025
sagemathgh-40246: Make the completion of Sym be its formal series ring.
    
<!-- ^ Please provide a concise and informative title. -->
<!-- ^ Don't put issue numbers in the title, do this in the PR
description below. -->
<!-- ^ For example, instead of "Fixes sagemath#12345" use "Introduce new method
to calculate 1 + 2". -->
<!-- v Describe your changes below in detail. -->
<!-- v Why is this change required? What problem does it solve? -->
<!-- v If this PR resolves an open issue, please link to it here. For
example, "Fixes sagemath#12345". -->

```
sage: s = SymmetricFunctions(ZZ).s()
sage: s.completion() is s.formal_series_ring()
False
```
since we forgot to override the alias.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have linked a relevant issue or discussion.
- [x] I have created tests covering the changes.
- [x] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

<!-- List all open PRs that this PR logically depends on. For example,
-->
<!-- - sagemath#12345: short description why this is a dependency -->
<!-- - sagemath#34567: ... -->
    
URL: sagemath#40246
Reported by: Travis Scrimshaw
Reviewer(s): Frédéric Chapoton
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