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MultiMarkdown. MultiMarkdown is a lightweight markup language created by Fletcher T. Penney as an extension of the Markdown format. It supports additional features not available in plain Markdown syntax. [5] There is also a text editor with the same name that supports multiple export formats.
Markdown[ 9] is a lightweight markup language for creating formatted text using a plain-text editor. John Gruber created Markdown in 2004 as an easy to read markup language. [ 9] Markdown is widely used for blogging and instant messaging, and also used elsewhere in online forums, collaborative software, documentation pages, and readme files .
An extensional definition gives meaning to a term by specifying its extension, that is, every object that falls under the definition of the term in question.. Forget example, an extensional definition of the term "nation of the world" might be given by listing all of the nations of the world, or by giving some other means of recognizing the members of the corresponding class.
Extension by definitions. In mathematical logic, more specifically in the proof theory of first-order theories, extensions by definitions formalize the introduction of new symbols by means of a definition. For example, it is common in naive set theory to introduce a symbol for the set that has no member. In the formal setting of first-order ...
A filename extension, file name extension or file extension is a suffix to the name of a computer file (for example, .txt, .docx, .md ). The extension indicates a characteristic of the file contents or its intended use. A filename extension is typically delimited from the rest of the filename with a full stop (period), but in some systems [ 1 ...
Extension method. In object-oriented computer programming, an extension method is a method added to an object after the original object was compiled. The modified object is often a class, a prototype or a type. Extension methods are features of some object-oriented programming languages. There is no syntactic difference between calling an ...
Conservative extension. In mathematical logic, a conservative extension is a supertheory of a theory which is often convenient for proving theorems, but proves no new theorems about the language of the original theory. Similarly, a non-conservative extension is a supertheory which is not conservative, and can prove more theorems than the original.
Extension by new constant and function names. In mathematical logic, a theory can be extended with new constants or function names under certain conditions with assurance that the extension will introduce no contradiction. Extension by definitions is perhaps the best-known approach, but it requires unique existence of an object with the desired ...