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introduce the category of Bounded posets#41216

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vbraun merged 4 commits intosagemath:developfrom
fchapoton:bounded_posets
Dec 21, 2025
Merged

introduce the category of Bounded posets#41216
vbraun merged 4 commits intosagemath:developfrom
fchapoton:bounded_posets

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@fchapoton
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as an useful thing to have

also declare that finite lattices are bounded

📝 Checklist

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

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fchapoton commented Nov 26, 2025

Would it be better to put "Bounded" lower in the list of axiom names ?

EDIT: It seems not.

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LGTM modulo one detail and one potential improvement.

Comment thread src/sage/categories/finite_lattice_posets.py Outdated
Comment thread src/sage/categories/finite_lattice_posets.py Outdated
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fchapoton commented Nov 27, 2025

Here is a way to make the "bounded finite" disappear.

EDIT: namely I moved "Bounded" before "Finite" in the list of axioms.

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@tscrim : would you please have another look if you can ?

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Thank you. Sorry for loosing track of this. LGTM.

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Thanks a lot, Travis.

vbraun pushed a commit to vbraun/sage that referenced this pull request Dec 20, 2025
sagemathgh-41216: introduce the category of Bounded posets
    
as an useful thing to have

also declare that finite lattices are bounded

### 📝 Checklist

- [x] The title is concise and informative.
- [x] The description explains in detail what this PR is about.
- [x] I have created tests covering the changes.
- [x] I have updated the documentation and checked the documentation
preview.
    
URL: sagemath#41216
Reported by: Frédéric Chapoton
Reviewer(s): Frédéric Chapoton, Travis Scrimshaw
@vbraun vbraun merged commit 05d6faf into sagemath:develop Dec 21, 2025
28 of 30 checks passed
@fchapoton fchapoton deleted the bounded_posets branch December 22, 2025 07:19
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3 participants