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arXiv论文跟踪
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Checking out Spheres.v you can see a proof of isequiv_Sph2_to_S2. It is really long and quite unreadable.
I was trying to prove the following on my own:
```Lemma susp_equiv_coeq {X : Type} : Sus…
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As per https://github.com/axelboc/anki-ultimate-geography/issues/137#issuecomment-620764010, I'm opening this issue to try to define a set of strict inclusion rules for political entities.
### Sove…
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(spawned off of #58291)
Reduced example ([play](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=9088e8b45b70b7c097d01fd5a7a997cb)):
```rust
use std::panic::RefUnwindSaf…
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#### Description of the problem
Qed took 3.7 hours to close a lemma:
```
fmsubty_to_fdsubty is defined
Finished transaction in 13391.78 secs (13357.157u,6.398s) (successful)
```
Ho…
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Context: trying to work out if these should be in obo-core, and if they can be generalized beyond biology, e.g. geosamples.
Both sample and specimen are textually and logically defined in terms of …
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Dan has expressed a desire to rephrase the language in the spec around when it's allowed to null out the [[Target]] slot of WeakRefs. In particular, to not tie it to the reachability of the spec objec…
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Undocumented option Standard Proposition Elimination Names was introduced in f9517286637fd0891a3ac1aac041b437e157f756 by @herbelin, then deprecated and marked as "remove in 8.8" in 180b3739bb6601ff9aa…
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I opened a PR to note this in the README file. I think we should try to accelerate the process of stabilizing the interface, especially since projects such as Vellvm are already using the code here. I…
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We had a discussion recently about the problem to represent the _type_ of vector concat. If we assume a type `Vector[Elem, Len ys
}
}
```
we should be able to reason as follows:
- In the ca…