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Questions tagged [countable]

29 questions
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Does there exist a TM for all countable languages?

I know that if a Turing machine exists for a language, that language is recursively enumerable and therefor there exists a enumeration procedure for it. However, if a language is countable, does that mean that there must be a TM for it? Thanks!
Þorvaldur Rúnarsson
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How to prove set of all two argument functions cannot be countable

We can prove that set of all one argument functions cannot be countable using the cantor's diagonal. for example 1 2 3 4 5 6 7 ...... f1 10 12 23 1 3 12 3 ...... f2 15 6 7 8 9 11 4…
Aruna Karunarathna
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Kallyas WP-theme. Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in

enter image description hereI use PHP 8.2.0. Kallyas wordpress theme. When clicking on the link http://***/wp-admin/widgets.php or reloading the page, an error occurs in the footer: Fatal error: Uncaught TypeError: count(): Argument #1 ($value)…
nond
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Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in

The above error appears in PHP 8.0, pointing to the line of code below: if ( isset( $attachment_metadata['sizes'] ) && count( $attachment_metadata['sizes'] ) && ( isset( $attachment_metadata['sizes'][ $intermediate_size ] ) ) ) { Section of code…
Andy
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Last item in iteration with PHP

I want to separate iteration results by comma, but it's not an array. I want to do it in views, so code shouldn't be long. title; ?> Result object implements Countable,…
foreachLoop
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Warning: count(): Parameter must be an array or an object that implements Countable in

im getting this warning on my website "Warning: count(): Parameter must be an array or an object that implements Countable in /home4/geec/public_html/home/wp-content/plugins/industing-assistance/inc/elementor/style/services/style1.php on line…
Maria Rivas
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Does python iterable imply countable?

I've stumbled upon an interesting case - only thing I am sure about is that I will get an iterable object. What I really, and only, want to do is to count it. I've searched if iterable in python implies countable and I found various places claiming…
jave.web
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php count function returns must be an array or an object that implements Countable

I have an array shown below and this line in my php controller: if(count($crew_rows != 0)){ Bluehost upgraded to php7.2 and I now get the following error: Warning: count(): Parameter must be an array or an object that implements Countable in…
DCR
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Parameter must be an array or an object that implements Countable how fix this?

I have an error this : Warning: count(): Parameter must be an array or an object that implements Countable public static function setSection( $section, $section_data = array(), $additional_section_data = array() ) { …
chtouk
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Static class property is an array, but throws "Parameter must be an array or an object that implements Countable" error

I have a class that looks like the following (shortened): class Request { /** * @var array $get get request, singleton */ private static $get = []; /** * Returns an instance of the request * * @param string…
Patrick
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wamp- count(): Parameter must be an array or an object that implements Countable

i am working on symfony and got this message Warning: count(): Parameter must be an array or an object that implements Countable This message is showing only for php 7.2.14, not for php 7.1.26. I would like a solution that is applied on the…
zskiredj
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Message: count(): Parameter must be an array or an object that implements Countable

Please tell me whats wrong ? public function view($link = null) { $temp = $this->BlogModel->getDetail('link', $link); if (count($temp) == 1) { "this countable" $data = array( 'app' => $this->app(), 'data'…
Atria
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PHP Warning: count(): Parameter must be an array or an object that implements Countable in C:\\htdocs\my.php

count(): Parameter must be an array or an object that implements Countable in C:\htdocs..\components\com_jcomments\tpl\joomspirit_theme\tpl_form.php $customBBCodes = $this->getVar('comments-form-custombbcodes'); if (count($customBBCodes)) { …
saeed
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is Set of Real Numbers Between 0 and 1 really uncountably Infinite?

Cantor's Set of Countable infinite and Uncountable infinite Infinites You may know and you may have proved that Set of Real Numbers Between 0 and 1 are Uncountably Infinite. Mean we Can not Map Every number of that set on a different Natural…
Ayub Khan
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