In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols together with their name, pronunciation, and the related field of mathematics. Additionally, the third column contains an informal definition, the fourth column gives a short example, the fifth and sixth give the unicode location and name for use in HTML documents. The last column provides the LaTeX symbol.
Outside logic, different symbols have the same meaning, and the same symbol can have different meanings, depending on the context.
Basic logic symbols
Advanced and rarely used logical symbols
These symbols are sorted by their Unicode value:
U+00B7·MIDDLE DOT, an outdated way for denoting AND, still in use in electronics; for example "A·B" is the same as "A&B"
·: Center dot with a line above it. Outdated way for denoting NAND, for example "A·B" is the same as "A NAND B" or "A|B" or "¬(A & B)". See also Unicode U+22C5⋅DOT OPERATOR.