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Given the following:
```
france(eu).
france(french).
germany(eu).
germany(german).
switzerland(german).
switzerland(french).
switzerland(italian).
%% from https://stackoverflow.com/questi…
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### Describe the bug
This header file is impossible to open, it makes nvim hang every single time.
Disabling Treesitter (:TSDisable highlight) makes my vim able to open it without issues.
### T…
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It seems Trealla Prolog doesn't have getbit evaluable functions:
```
?- X is getbit(1024, 2).
error(type_error(evaluable,getbit/2),(is)/2).
```
The same evaluable function is available in SWI-…
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Something has significantly changed in a bad way, between this:
`Open Watcom Make Version 2.0 beta Dec 12 2022 00:50:48 (32-bit)`
... and this version of OW:
`Open Watcom Make Version 2.0 beta Dec …
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The following happens:
```
?- !.
caught: error(existence_error(procedure,!/0),!/0)
?-
```
While:
```
?- true, !.
true.
?- !, true.
true.
?-
```
ghost updated
2 years ago
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Now I bumped my head:
- (div)/2 is missing
- current_prolog_flag/2 is missing
- What else?
For the later I get:
```
?- current_prolog_flag(version, X).
WARNING: Predicate current_prolog_fla…
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Conformity to ISO syntax means two things: Both correct reading and writing.
For example, [#27](http://www.complang.tuwien.ac.at/ulrich/iso-prolog/conformity_testing#27) is not conforming:
```
…
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I find a commit comment:
```
diff --git a/ports/fcube/fcube.lgt b/ports/fcube/fcube.lgt
index acdc0ebbf5..d1d46b5951 100644
--- a/ports/fcube/fcube.lgt
+++ b/ports/fcube/fcube.lgt
+ % Paulo Mour…
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The link [ISO Prolog: A Summary of the Draft Proposed Standard](http://fsl.cs.illinois.edu/images/9/9c/PrologStandard.pdf) in http://tau-prolog.org/manual/a-simple-tutorial seems to be broken.
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Hello, I noticed the following query fails to unify:
```prolog
(A=a+b -> true ; false) = ;(->(=(+(a,b),+(a,b)),true),false).
```
Expected: `A = a+b.`
### Comparison
Running this query:
``…