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In lampepfl/dotty#6023 @anatoliykmetyuk asked a theoretical question, and @smarter forwarded it to me, to investigate it in DOT.
> I have not found a proof anywhere that `F[A] & F[B]
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I wanted to experiment with a certain Kripke semantics
for intuitionistic logic. But I am missing a check box to
choose a persistency condtion for the accessibility relation.
This would be a pro…
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## Compiler version
3.3.3 and 3.4.0
Works fine in Scala 2.
## Minimized code
```Scala
val selfie : (AnyRef => AnyRef) => AnyRef = (f:AnyRef => AnyRef) => f(f)
```
## Output (click arrow…
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I'm currently playing around with the YAML input and would like to know whether there is a specification or documentation for the expected format. The examples are very different in their structure. W…
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Related to #11, we don't really do anything clever with where clauses on traits/structs. We need to support "elaboration" -- ideally, a richer form than what the current compiler supports. In particul…
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```
-- Embedding of classical logic into intuitionistic logic using double negation
data False {}
codata Not(a: Type) {
Not(a).ret(a: Type, x: a): False,
}
data DN(a: Type) {
C1(a…
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Building off the reasoning and justification in my self-rejected issue [Fast track transpiling to PureScript?](https://github.com/keean/zenscript/issues/12), I have a new idea of how we might be able …
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This is stated in http://us.metamath.org/mpeuni/qnnen.html but the iset.mm proof likely will need to be different in several ways:
* We will presumably prove http://us.metamath.org/mpeuni/xpnnen.ht…
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The mmil.html file has not been updated as it should be during recent website updates.
For example, the pull request https://github.com/metamath/set.mm/pull/2991 made edits to iset.mm and mmil.raw.…
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**Description**
ISLa does not always consider the right-hand side of a disjunction. Setting `ISLaSolver.__init__`'s parameter `activate_unsat_support` to `True` resolves the issue in many cases, bu…