The Three Basic Laws of Logic

The three basic laws of logic: the law of identity, the law of contradiction, and the law of neutrality.

The basic formulas of "and", "or", and "not" logic are and, or, not. The logical operator to the relationship between the expression or logical quantities connected to the meaningful formula is called a logical expression. The value of a logical expression is a logical value, i.e., "true" or "false".

Logical operations:

1. Logical and - denoted by AB: when A, B are both 1, its value is 1, otherwise it is zero.

2. Logical or - expressed as A + B: when A, B are both 0, its value is 0, otherwise it is 1.

3. Logical non - expressed as A on '? ' indicates that when A = 0, the non of A is 1, and when A = 1, the non of A is 0.

Generation

Boole studied logical problems mathematically and succeeded in establishing logical algorithms. He represented judgments in terms of equations and viewed reasoning as a transformation of equations. The validity of this transformation does not depend on people's interpretation of the symbols, but only on the law of combination of symbols. This logical theory is often referred to as Boolean algebra.In the 1930s, logical algebra was applied to circuit systems, and then, due to the development of electronic technology and computers, various large and complex systems appeared, and their transformation laws obeyed the laws revealed by Boolean.

Conceptual Origin

Logic is the laws, the rules of thinking. Logic is the doctrine of the laws of thinking. There are two concepts common to logic and logic. Album and logic with the pronunciation of light sound.

Logic, from the classical Greek (logoc), originally meant "word" or "speech", (derived from "thinking" or "reasoning"). (derived from "thinking" or "reasoning"), in 1902 Yan Fu translated Muller's Nomenclature, meaning "nomenclature" and phonetically "logic"; because the word is derived from the Japanese Chinese word Because the word is derived from the Japanese word "论理", it is also translated as "论理学" in Japanese.

Logic has traditionally been studied as a branch of philosophy. Since the mid-19th century, logic has often been studied in mathematics and computer science. The scope of logic is vast, ranging from core topics such as the study of fallacies and paradoxes to specialized reasoning analyses such as contingently correct reasoning and arguments involving causation. In ancient China, logic was also known as the science of reasoning, the science of reasoning, the science of names, and the science of criminal names.