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  2. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

  3. List of typographical symbols and punctuation marks - Wikipedia

    en.wikipedia.org/wiki/List_of_typographical...

    Feminine ordinal indicator, Degree sign: −: Minus sign: Hyphen-minus, Commercial minus: ×: Multiplication sign: X mark # Number sign: Numero sign. Also known as "octothorpe", "hash" and "hashtag sign" Pound sign № Numero sign: Number sign: Obelus: Division sign, Dagger, Commercial minus, Index ( ) Parenthesis: Bracket, Angle bracket ...

  4. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    definition: is defined as metalanguage:= means "from now on, is defined to be another name for ." This is a statement in the metalanguage, not the object language. The notation may occasionally be seen in physics, meaning the same as :=.

  5. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    Meaning Use sp: Spelling: Used to indicate misspelling spo: Spell out: Used to indicate that an abbreviation should be spelled out, such as in its first use stet: Let it stand: Indicates that proofreading marks should be ignored and the copy unchanged fl: Flush left: Align text flush with left margin fr: Flush right: Align text flush with right ...

  6. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the population mean or expected value in probability and statistics; a measure in measure theory; micro-, an SI prefix denoting 10 −6 (one millionth) Micrometre or micron (retired in 1967 as a standalone symbol, replaced by "μm" using the standard SI meaning) the coefficient of friction in physics; the service rate in queueing theory

  7. The 12 signs of the zodiac are typically illustrated as sitting in a wheel. It may come as a surprise, but the signs opposite each other in the zodiac are considered far more compatible than the ...

  8. Connotation (semiotics) - Wikipedia

    en.wikipedia.org/wiki/Connotation_(semiotics)

    If a signifier has only a single denotational meaning, the use of the sign will always be unambiguously decoded by the audience. But connotative meanings are context-dependent, i.e. the addresser must learn how to match the meaning intended by the addresser to one of the various possible meanings held in memory.

  9. Symbol - Wikipedia

    en.wikipedia.org/wiki/Symbol

    A symbol for symbol proposed to the ISO by Jan V. De Neys Wearing variously colored ribbons is a symbolic action that shows support for certain campaigns.. A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship.