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The following program type checks:
```
> import Data.Fin
> import Syntax.PreorderReasoning
> %default total
> instance Uninhabited (LTE (S n) Z) where
> uninhabited LTEZero impossible
> uninhab…
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#### Description of the problem
When there are no goals remaining, Coq reports "No such goal." even when the "tactic" provided is not a valid tactic.
```coq
Goal True.
Fail (this is not …
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#### Description of the problem
Here is a real-world example where conversion can take arbitrarily long, even though the problem is very simple for humans (and to the conversion algorithm, if the t…
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#### Description of the problem
It's folklore that if you `Set Universe Polymorphism` most of the same code should still work. And it's also folklore that this isn't actually the case. Here's one…
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Was inspired by the work of Nikolai - Parametric Cookie:
https://github.com/njanakiev/blender-scripting/blob/master/README.md#phyllotaxis-flower
;
sw.WriteLine(Str_Product);
evezine
using StreamWriter sw …
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#### Description of the problem
Consider the following code:
```
Section test.
Let Fact: 0 = 0.
Proof. Admitted.
```
Surprisingly, this results in a warning:
```
Warning: Let definition…
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Defining functions locally in a proof generates an error if the domain of such a function is defined via a class term. Example:
```
Lemma. Every set is a set.
Proof.
Define f[x] = x for x in {u …
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## Feature
So far, the bigint syscall only exposes the remainder. There are situations when we want the quotient, which is closely related to ECDSA signature verification, as we want to use the endom…
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```
error: derivation '/nix/store/il6annjr6i2hydvpr4kva0qxkbk835fi-qemu-utils-9.1.1.drv'
may not be deterministic:
output '/nix/store/nprz02qpz0vbx11xxq65fj3qghp7v57s-qemu-utils-9.1.1' differs from…