kandi X-RAY | proof Summary
kandi X-RAY | proof Summary
Authentication for Modern Web Apps.
Top functions reviewed by kandi - BETA
- Validates the claim .
- Returns true if the expiration time expires .
proof Key Features
proof Examples and Code Snippets
Trending Discussions on proof
In the simple example below I get the error Tactic failure: Cannot find witness. The lemma seems rather trivial so I guess, I'm not using the quantification properly....
ANSWERAnswered 2021-Jun-15 at 11:55
Looking at the documentation, it does not seem that the decision procedure for lia handles existential quantifiers, so you have to instantiate the existential by yourself, e.g.
This is a basic question, but i couldn't find the answer to it anywhere.
We have two approaches:...
ANSWERAnswered 2021-Jun-14 at 14:54
Easy to see the difference
I was writing a simple loop in C++ and was wondering what the time complexity would be.
My intuition tells me that it is
O(n*log(n)) but I couldn't come up for a proof for the
ANSWERAnswered 2021-Jun-14 at 14:10
Worst case is when the input has only unique numbers. In that case, the equivalent is:
Before I run
eb create command, how can I tell Elastic Beanstalk to use a DIFFERENT
For example, my project directory:...
ANSWERAnswered 2021-Jun-12 at 22:39
You can't do this from command level. But I guess you could write container_commands script to rename your
docker-compose file from
You can use the container_commands key to execute commands that affect your application source code. Container commands run after the application and web server have been set up and the application version archive has been extracted, but before the application version is deployed.
UPDATE 12 Jun 2021
I tried to replicate the issue using simplified setup with just
Docker running on 64bit Amazon Linux 2 3.4.1 EB platform.
I'm working on making a function to create tables and I need to have some conditional rules involved for formatting. One will be based on a column name, however when I send it down using
as.formula it seems to be over doing it. I've made an example here:
ANSWERAnswered 2021-Jun-12 at 21:11
We could specify the
j with the column names of the data created i.e.
startsWith returns a
logical vector from the column names based on the names that starts with 'b', use the logical vector to extract the column names with
I started using CloudFormation Modules in my templates as a way to promote reuse and company best practices. I created a couple of modules as a proof-of-concept, which appeared in the CloudFormation Registry in AWS Console as expected.
The problem I'm having is that I would like to delete these test modules and build the real ones. I can't seem to find a way to do this, or even any documentation stating that it's not possible and why not. Is this possible, if so how?
The steps I ran to create/register the module are described here:...
ANSWERAnswered 2021-Jun-11 at 17:26
aws cloudformation deregister-type --arn
So, I'm pretty sure this should be possible without choice. Maybe I am wrong.
Here is a minimal reproducible example of what I'm trying to do:...
ANSWERAnswered 2021-Jun-11 at 09:25
In the two links you mention, the problem is the segregation enforced by Coq between propositions (those types of type
Prop) and other types (those with type
Type), with the idea being that proofs should not be needed for programs to run. However, in your case both
set M and
subset M are propositions, so this separation is not a problem: as you saw when defining
fn0, Coq is perfectly happy to use the first component of your existential type to build the function you are looking for. This is a good point of constructive mathematics: modulo the separation between
Type, choice is simply true!
Rather, the problem comes from the second part of the proof, i.e. the proof of equality of functions. It is a subtle issue of Coq that equality of functions is not extensional, that is the following axiom cannot, in general, be proven
So I'm trying to perform a simple proof using cardinalities. It looks like:...
ANSWERAnswered 2021-Jun-11 at 08:54
I believe that the lemma you are trying to prove does not appropriately consider the case of infinite sets.
In Isabelle/HOL, infinite cardinalities are represented by zero. As we can see by the following lemma.
I have been wondering recently if accessing the
array.length getter was cached by NodeJS, but I have only been able to find conclusive answers regarding JS interpretation in browsers, but I am developping apps in Typescript, so that's not relevant to my question (correct me if I'm wrong)
So, is accessing
array.length of time complexity O(1) (cached by NodeJS) or O(n) (not cached by NodeJS) in NodeJS 14 ?
I have a hunch that it is cached, but I'd really like a definitive answer or "proof" of it...
ANSWERAnswered 2021-Jun-10 at 23:19
If what you meant to ask is whether the
.length property is calculated from scratch by counting the array elements every time, that is definitely NOT how it works. It is an internal property of the
Array object that is maintained as the array is modified. Accessing the
.length property, just retrieves that internal property value. If that's what you meant by cached, then yes it is cached.
There also may be specific circumstances where the optimizing compiler can be sure that your array is not being modified (such as a
for loop iterating the array with only local code that does not modify the array) where the compiler itself may cache the
.length property outside of the array (but apparently that is not what you meant to ask about).
I am working on a proof-of-concept app, written in Rust, with the end goal being to produce a shared library (.dll/.so) callable via C ABI from a number of other languages (C++, C#, etc). I have two simple components;
poc is a Rust console app, which references
poclib which exposes some simple functions. The app itself builds and runs fine so far, but I am stuck on how to debug it in VSCode using CodeLLDB.
I have a top level "workspace" like this:...
ANSWERAnswered 2021-Jun-10 at 15:46
I don't understand why it worked at all initially, but the solution was to fix the
crate_type option so that I'm producing both C ABI libraries and native Rust libraries.
No vulnerabilities reported
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