FORMAL SYSTEM Meaning and
Definition
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A formal system refers to a well-defined set of rules, symbols, and operations that are meticulously structured to describe and manipulate certain aspects of reality or knowledge. It is a framework for logically representing, analyzing, and generating knowledge or information within a particular domain. Formal systems have found extensive use in various fields such as mathematics, logic, computer science, linguistics, and philosophy.
At its core, a formal system consists of three essential components. Firstly, it comprises a system of symbols or notation that are used to represent different concepts or elements within the domain being studied. These symbols are often selected to be unambiguous and distinct, allowing for clear communication and precise reasoning.
Secondly, a formal system includes a set of axioms or basic assumptions that serve as the fundamental building blocks of knowledge for the domain. These axioms are typically assumed to be true or self-evident and form the starting point for deriving additional knowledge through logical deduction.
Lastly, a formal system incorporates inference or proof rules, which outline the permissible logic or steps for drawing conclusions and generating new knowledge based on the established axioms and symbols. These rules ensure that the reasoning within the formal system is valid and reliable, enabling the derivation of logically sound results.
Overall, a formal system is a rigorous and structured approach to describing, manipulating, and reasoning about knowledge or information within a specific domain. It provides a systematic way of organizing and analyzing complex concepts, facilitating accurate modeling, prediction, and problem-solving within the domain it represents.
Etymology of FORMAL SYSTEM
The word "formal" is derived from the Latin word "formalis", meaning "pertaining to form or shape". It entered the English language in the late 14th century, primarily referring to something proper, established, or official.
The word "system" has its roots in the Late Latin word "systema", which further originates from the Greek word "sustēma". It was adopted in English during the 17th century, referring to an organized set of principles or rules.
Therefore, the term "formal system" combines these two words to represent an organized and structured set of rules or principles with an emphasis on being proper, established, or official. In various fields, such as mathematics, logic, or computer science, a formal system is a system of symbols, rules, and operations used to express statements and perform deductions.
