leanprover-community / leanprover-community/mathlib4
A better notation for limit
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Description
It is my first time opening an issue.
Here is the zulip topic
Is there a better notation for the limit in mathlib ?
like lim x → -∞ , (∫ (t : ℝ) in Iic x, f t) = 0 instead of Tendsto (fun x ↦ ∫ (t : ℝ) in Iic x, f t) atBot (𝓝 0)
It would be great if someone could add this notation to mathlib.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing the linked Zulip topic and the existing Tendsto ... atBot expression shown in the issue. Determine whether mathlib should support a shorter limit notation and what notation and scope would be accepted; the issue is done when an agreed notation is implemented.
Written by the indexing model from the issue text.
Assessment
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100