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(Unfortunately I haven't minimised this to the point we can avoid mathlib.)
```
import set_theory.ordinal
inductive G : Type 1
| mk : ∀ α : Type, (α → G) → G
noncomputable def N : ordinal →…
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### Prerequisites
* [X] Put an X between the brackets on this line if you have done all of the following:
* Checked that your issue isn't already [filed](https://github.com/leanprover/lean/iss…
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### Prerequisites
Please put an X between the brackets as you perform the following steps:
* [X] Check that your issue is not already filed:
https://github.com/leanprover/lean4/issues
* …
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Here's (arguably) a bug which may be difficult to fix:
```
import Aesop
import Mathlib.Data.Nat.Basic
variable {bad : ℕ × ℕ}
set_option trace.aesop true in -- Shows that `destructProducts`…
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Lean4's `≤` does not match lean3's `≤` on nats. In lean3, nat.le are inductive whereas in lean4, Nat.le is defined as the boolean version returning true. I think this instance clash will cause big pro…
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無理数の定義からわりとすぐに従う上に、無理数を定義するのに必要な実数の闇にノータッチなまま話を進められそう。
しかも非自明。
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### Prerequisites
Please put an X between the brackets as you perform the following steps:
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* …
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As noticed by @larsk21
```lean
example (h : n = 0) : n = 0 := by cases n -- replaces all occurrences
example (h : n = 0) : n = 0 := by cases h' : n -- replaces occurrence in target
example (h : …
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`mathport` incorrectly capitalizes many names with `'` (e.g., if `'`
goes after a "word" like in `continuous_on'`).
- [x] Generate the list of all names with `'`.
- [ ] Review the list, fix names.
urkud updated
9 months ago
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Building the CombBLAS 2.0 release on Linux (Debian unstable) with OpenMPI 4.1.5, 4 out of 20 fail, running via ctest (`/usr/bin/ctest --force-new-ctest-process --verbose -j8`),
```
80% tests passed,…