axiom | A package that provides a library of reusable Laravel | Validation library
kandi X-RAY | axiom Summary
kandi X-RAY | axiom Summary
This package provides a library of reusable validation rules for your Laravel projects. Use them to augment the existing set provided by Laravel itself. Axiom is a re-release of the original alphametric/laravel-validation-rules package, which was also created by myself. This new version includes a rewrite to support PHP 7.4+ and also includes type hinting as well as some additional refactoring.
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Top functions reviewed by kandi - BETA
- Verify Brazilian number .
- Create temporary file .
- Verify Vietnam .
- Create the users table .
- Check if the user has a valid value .
- Get the error message .
- Returns a random example .
- Migrate posts .
axiom Key Features
axiom Examples and Code Snippets
Lines of Code : 20
License : No License
Copydef generate(self, axiom, iterations):
'''
Method to apply all production rules on an initial axiom string
over a number of iterations.
@param axiom: data or symbol string to be processed
@type axiom: string
Community Discussions
Trending Discussions on axiom
QUESTION
I’m trying to prove something in Coq using the commutativity of the logic AND operator. I coded this short example:
...ANSWER
Answered 2022-Apr-01 at 10:16The symmetry tactic is specifically for reasoning about equalities (a = b iff b = a).
I don't know of general machinery for commutative operators, but you can find the lemma you need with something like this:
QUESTION
Say we have a proposition P1 n, and there exists n for which it holds. Furthermore we have a proposition P2, where P1 n implies P2 for any n. How do we prove P2?
ANSWER
Answered 2022-Feb-28 at 13:14You may eliminate some_p1to get a witness nand a hypothesis Hn.
QUESTION
I am trying to call an OWL API java program through terminal and it crashes, while the exact same code is running ok when I run it in IntelliJ.
The exception that rises in my main code is this:
...ANSWER
Answered 2022-Jan-31 at 10:43As can be seen in the comments of the post, my problem is fixed, so I thought I'd collect a closing answer here to not leave the post pending.
The actual solution: As explained here nicely by @UninformedUser, the issue was that I had conflicting maven package versions in my dependencies. Bringing everything in sync with each other solved the issue.
Incidental solution: As I wrote in the comments above, specifically defining 3.3.0 for the maven-assembly-plugin happened to solve the issue. But this was only chance, as explained here by @Ignazio, just because the order of "assembling" things changed, overwriting the conflicting package.
Huge thanks to both for the help.
QUESTION
I want to programmatically get explanations for inferred axioms in consistent ontologies, in a similar manner that one can do in the Protégé UI. I cannot find any straightforward way. I have found the owlexplanation repo, but I cannot for the life of me solve the dependency issues to set up the owlexplanation environment. I have also browsed the javadoc of owlapi regarding explanations (to avoid the other repo altogether), but I don't see anything useful beyond what I can already see browsing the Java source code.
I have thought of simply negating the inferred axiom, to get explanations through inconsistencies, but I would prefer something cleaner, and I am not sure this approach is correct anyway.
Other (possibly) useful context:
- I had used some Java years ago, but I now primarily use Python (I try to use OWL API with JPype and OWL in general with Owlready2).
- I am using HermiT reasoner (again through JPype) (according to build.xml file, latest stable version 1.3.8).
- I have managed to get explanations for unsatisfiability and inconsistency in my setup, without
owlexplanation, following this example from the HermiT source code. - I fell in the rabbit hole wanting to make a usable
.jarfile forowlexplanation, in order to add it in my JPype classpath. My plan went sideways when I couldn't get the Java project to build in the first place. - I am using Intellij IDE.
I would appreciate any insight or tips.
UPDATE Jan 6, 2022:
I decided to try once more with the owlexplanation code with a clean head so here is where I am at:
- Downloaded the source code from github and extracted the zip.
- Started IntelliJ and instead from "Creating a project from Existing sources", I clicked "Open" and selected the extracted directory.
- I built the project and it did successfully.
- From Maven tools, I run clean, validate, compile and test succesfully.
- If I run "package" Maven action, it throws as error that "The environment variable JAVA_HOME is not correctly set". The thing is that if I go File>Project Structure, I see that SDK is set to 11, it's not empty.
- Additionally, from the
pom.xmlfile I get these problems:Plugin 'org.apache.maven.plugins:maven-gpg-plugin:1.5' not foundPlugin 'org.sonatype.plugins:nexus-staging-maven-plugin:1.6.6' not found
UPDATE Jan 8, 2022: (Trying @Ignazio's answer)
I created a new IntelliJ project, and added the Maven dependencies @Ignazio mentioned (plus some others like slf4j etc) and I got a working example (I think). Moving to my main project (using JPype), I had to manually download some .jars to include in the classpath (as maven can't be used here). These are the ones downloaded so far:
ANSWER
Answered 2022-Jan-07 at 20:52You're not just using the projects but actually building them from scratch, which requires more setup than using the published artifacts.
Shortcut that uses Maven available jars (via Maven Central, although other public repositories should do just as well)
Java code:
QUESTION
UIP (and equivalents like axiom K) must be added axiomatically in Coq if it is desired:
...ANSWER
Answered 2021-Dec-22 at 20:15As hinted in my previous answer, the eliminator for equality in Coq inherits this behavior from intensional type theory, where it was introduced to keep type checking decidable. However, later people realized that it is possible to have an elimination principle for equality that validates axiom K without ruining decidability. This is not implemented in Coq, but it is implemented in Agda:
QUESTION
I'm learning to use Coq and I try to prove the theorems of a paper I'm reading. The paper is Having a Part Twice Over of Karen Bennett, published in 2013. The paper propopes a mereological theory composed of two primitives F and Ps and defines the parthood relation P using the two primitives.
I coded it as follows:
...ANSWER
Answered 2021-Dec-17 at 22:19Yes, your Coq code is OK. But there are shorter proofs. This theorem is simple enough that it can be solved with Coq's automation tactics. E.g.,
QUESTION
I try to implement on Alloy the axiomatic system described in a paper on mereology: "Bennett, Having a Part Twice Over, 2013".
I implemented all the axioms, and I thought that if I implemented them correctly, I could assert and check the theorems.
I try to code theorem (T9). This is the theorem in the paper:
And this is how I coded it:
...ANSWER
Answered 2021-Dec-17 at 22:18As explained by Hovercouch, it was a precedence issue :
you got AE(p impl q) when you wanted A((Ep) impl q)
Adding parentheses fixed the issue.
QUESTION
I am trying to upgrade tailwind to version 3 in my Laravel application.
I followed the installation as instructed in
https://tailwindcss.com/docs/upgrade-guide#upgrade-packages
npm install -D tailwindcss@latest postcss@latest autoprefixer@latest
This worked fine. But when I run npm run dev I get this error:
ERROR in ./resources/assets/css/tailwindcore.css Module build failed (from ./node_modules/css-loader/index.js): ModuleBuildError: Module build failed (from ./node_modules/postcss-loader/src/index.js): Error: PostCSS plugin tailwindcss requires PostCSS 8.
I have read from the docs that PostCSS 8 is now required with tailwind 3. However, PostCSS 8 has been installed. Why would I still receive this error? I also tried to remove node_modules folder and reinstall, but got same error.
This is my package.json:
...ANSWER
Answered 2021-Dec-10 at 09:46The issue is that you're running an old version of Laravel Mix. Another issue you will face is the @tailwindcss/form plugin will need to be updated as well.
Update the packages with:
QUESTION
Many programming languages today have happens-before relation and release+acquire synchronization operations.
Some of these programming languages:
- C/C++11: happens-before, release+acquire
- Rust and Swift adopted the C/C++ memory model in its entirety — so they have that too.
- Java: happens-before, release+acquire.
I would like to know if release+acquire can violate happens-before:
- if it's possible, then I would like to see an example
- if it's impossible, then I would like to get simple and clear explanations why
release+acquire and happens-before
Release/acquire establishes happens-before relation between different threads: in other words everything before release in Thread 1 is guaranteed to be visible in Thread 2 after acquire:
ANSWER
Answered 2021-Nov-01 at 04:59I would like to know if release+acquire can violate happens-before.
Happens-before relationship cannot be "violated", as it is a guarantee. Meaning, if you established it in a correct way, it will be there, with all its implications (unless there is a bug in the compiler).
However, establishing just any happens-before relationship doesn't guarantee that you've avoided all possible race conditions. You need to establish carefully chosen relationships between relevant operations, that will eliminate all scenarios when data race is possible.
Let's review this code snippet:
QUESTION
My understanding is that the typical notion of equality is too weak to prove many intuitive equalities on possibly infinite coinductive terms. Therefore it is necessary to introduce a coinductive equality for the specific coinductive type in question.
For instance, I have the following coinductive definitions concerning infinite relation transition sequences:
...ANSWER
Answered 2021-Nov-11 at 06:16While this axiom makes sense intuitively, are such coinductive extensionality principles known to be sound in general?
Yes. There's an isomorphism between coinductive types and function types. A coinductive type modulo coinductive extensionality is isomorphic to the type of functions from it's index type to its data type modulo function extensionality. So, for example, Stream A modulo EqSt (from Coq.Lists.Streams) is isomorphic to nat -> A modulo function extensionality. Your datatype modulo path_extensionality is roughly isomorphic to { st : nat -> state | forall n, R (st n) (st (S n)) } modulo function extensionality. The trick I'm pulling with your datatype here is to transform it into one that is parameterized instead of indexed; your datatype is morally parameterized over Stream state.
There's unfortunately no way to introduce all the extensionality axioms at once, unless you want to give up coinductives and switch to functions (in which case you can just use the standard library axiom Coq.Logic.FunctionalExtensionality.functional_extensionality_dep). However, you could use a weaker axiom combined with function extensionality: the weaker axiom for a given coinductive type would say that if you go from the coinductive to the corresponding function and then back, you get back what you started with. Another way of phrasing this is that you can axiomatize only one direction of the isomorphism, rather than both directions. This is weaker in the sense that each coinductive extensionality axiom implies function extensionality for the corresponding function type, but this axiom does not.
In case you want some code, here's some code showing the formal isomorphism for standard library streams and for your type (works in Coq 8.13):
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