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In logic, mathematics, computer science, and linguistics, a formal language consists of words whose letters are taken from an alphabet and are well-formed according to a specific set of rules called a formal grammar. The alphabet of a formal language consists of symbols, letters, or tokens that concatenate into strings called words. [1]
We use formal language in situations that are serious or that involve people we don’t know well. Informal language is more commonly used in situations that are more relaxed and involve people we know well. Formal language is more common when we write; informal language is more common when we speak.
Formal language is a style of communication that adheres to established conventions and rules, typically characterized by its use of complete sentences, precise vocabulary, and a structured format.
Quick Summary of Formal and Informal Language. The main difference between formal and informal language in writing is that formal language is more rigid and less personal, whereas informal language is more easygoing and adaptive.
We break down some key elements of how to write for a formal and an informal audience, with examples of formal vs. informal writing along the way.
A formal language is a set of strings of symbols that are constructed using specific rules and syntax, making it distinct from natural languages. It serves as a precise way to communicate mathematical and logical concepts, enabling unambiguous expression and manipulation of statements and proofs.
A formal grammar is defined as a set of production rules for such strings in a formal language. Formal language theory, the discipline that studies formal grammars and languages, is a branch of applied mathematics.
Formal vs. informal writing: What is the difference? Formal and informal writing are two different types of tone for either serious or casual language. Generally, formal writing is used for serious topics and readers that you don’t know very well, which is why it’s common in business and journalism.
Compared to informal language, formal language contains more complex sentences, objective and direct language, and technical or specific terminology. This article will overview the differences between formal and informal language, explaining what changes depending on the context’s formality.
SHARES. It is extremely important to know when to use either formal or informal language. This will depend on the business you are working in, the industry you are in, the people you are speaking with, and the topic you are talking about. Learning the formal and informal way to speak is also a great way to master and learn the language.