Difference between Artificial Language and Set Phrase

ARTIFICIAL LANGUAGE vs SET PHRASE: NOUN

Computer language
Formal language
Constructed language
An invented language based on a set of prescribed rules and developed for a specific purpose, such as international communication or computer programming.
A language that is deliberately created for a specific purpose

A common expression whose words cannot be replaced by synonymous words without compromising the meaning.
A common expression whose wording is not subject to variation.
An expression whose meanings cannot be inferred from the meanings of the words that make it up

Transdialect, Sinicism, Sociolect, Historical linguistics, Metalinguistics, Languageless, Landsmal, Hebraistic, Hispanism, Intralinguistic, Idioglossia, Pasigraphy, Language, Latino sine flexione, Basic english

Syllabism, Content word, Tralation, Italicism, Epanadiplosis, Noun phrase, Verb phrase, Hispanism, Dorism, Cockneyism, Figure of speech, Phrasal idiom, Idiomatic expression, Idiom, Phrase

Transdialect, Sinicism, Sociolect, Historical linguistics, Metalinguistics, Languageless, Landsmal, Hebraistic, Hispanism, Intralinguistic, Idioglossia, Pasigraphy, Language, Latino sine flexione, Basic english

Expressive style, Extradictionary, Syllabism, Content word, Tralation, Italicism, Epanadiplosis, Noun phrase, Verb phrase, Hispanism, Dorism, Cockneyism, Figure of speech, Idiom, Phrase

Esperanto speakers are gathering in eastern Poland today for a conference on the artificial language, whose founder wanted it to create global harmony.
Questions pertaining to general knowledge, artificial language, short essays on issues related to the subject, etc.
But for mathematics, say, a somewhat artificial language would be appropriate, would it not?
Typological universals as reflections of biased learning: Evidence from artificial language learning.
So now for my questions: Why did the SAT get rid of their artificial language section?
An artificial language invented for universal use, with stems common to European languages and regularized endings.
In these studies, participants had to segment streams of an artificial language.
Introduction A programming language is an artificial language designed to communicate instructions to a machine, usually computer.
Is code, as an artificial language, subject to the same regulations as natural language?
We first consider the role of implicit memory in language by looking at both natural and artificial language learning studies.

Sometimes a collocation is meant as a synonym of a word combination, sometimes it is a special type of a set phrase.
As will be shown later, this set phrase appears not only in the SSP list, but is broadly seen in many other contexts.
Rude am I in speech, and little blest With the set phrase of peace.
English dictionaries as an idiom, set phrase, collocation, no matter whatever it is?