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  2. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.

  3. Binary opposition - Wikipedia

    en.wikipedia.org/wiki/Binary_opposition

    In critical race theory, the paradigm is known as the black–white binary. [12] Post-structural criticism of binary oppositions is not simply the reversal of the opposition, but its deconstruction, which is described as apolitical—that is, not intrinsically favoring one arm of a binary opposition over the other. Deconstruction is the "event ...

  4. Class diagram - Wikipedia

    en.wikipedia.org/wiki/Class_diagram

    A binary association is represented as a solid line between two classes. A reflexive association is a binary association between the class and itself. An association between more than two classes is represented as a diamond connected with a solid line to each of the associated classes. An association between three classes is a ternary association.

  5. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    A binary number may also refer to a rational number that has a finite representation in the binary numeral system, that is, the quotient of an integer by a power of two. The base-2 numeral system is a positional notation with a radix of 2 .

  6. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Binary Property List file 42 5A 68: BZh: 0 bz2 Compressed file using Bzip2 algorithm 47 49 46 38 37 61 47 49 46 38 39 61: GIF87a GIF89a: 0 gif Image file encoded in the Graphics Interchange Format (GIF) [9] 49 49 2A 00 (little-endian) II*␀ 0 tif tiff Tagged Image File Format (TIFF) [10] 4D 4D 00 2A (big-endian) MM␀* 49 49 2B 00 (little ...

  7. Tree (abstract data type) - Wikipedia

    en.wikipedia.org/wiki/Tree_(abstract_data_type)

    This unsorted tree has non-unique values (e.g., the value 2 existing in different nodes, not in a single node only) and is non-binary (only up to two children nodes per parent node in a binary tree). The root node at the top (with the value 2 here), has no parent as it is the highest in the tree hierarchy.

  8. Binary code - Wikipedia

    en.wikipedia.org/wiki/Binary_code

    The modern binary number system, the basis for binary code, is an invention by Gottfried Leibniz in 1689 and appears in his article Explication de l'Arithmétique Binaire (English: Explanation of the Binary Arithmetic) which uses only the characters 1 and 0, and some remarks on its usefulness. Leibniz's system uses 0 and 1, like the modern ...

  9. Plus and minus signs - Wikipedia

    en.wikipedia.org/wiki/Plus_and_minus_signs

    The plus sign (+) is a binary operator that indicates addition, as in 2 + 3 = 5. It can also serve as a unary operator that leaves its operand unchanged (+ x means the same as x ). This notation may be used when it is desired to emphasize the positiveness of a number, especially in contrast with the negative numbers (+5 versus −5).