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U+2248 ≈ ALMOST EQUAL TO. U+2261 ≡ IDENTICAL TO. A well-known equality featuring the equal sign. The equals sign ( British English) or equal sign ( American English ), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1]
The ⇒ symbol is often used in text to mean "result" or "conclusion", as in "We examined whether to sell the product ⇒ We will not sell it". Also, the → symbol is often used to denote "changed to", as in the sentence "The interest rate changed. March 20% → April 21%". See also. Philosophy portal; Glossary of logic; Józef Maria Bocheński
The symbol ≡ is used in science and mathematics with several different meanings. It may refer to the following:
The triple bar or tribar, ≡, is a symbol with multiple, context-dependent meanings indicating equivalence of two different things. Its main uses are in mathematics and logic. It has the appearance of an equals sign = with a third line.
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A ⊂ B {\displaystyle A\subset B} may mean that A is a proper subset of B, that is the two sets are different, and every element of A belongs to B; in formula, A ≠ B ∧ ∀ x , x ∈ A ⇒ x ∈ B {\displaystyle A eq B\land \forall {}x,\,x\in A\Rightarrow x\in B} . ⊆. A ⊆ B {\displaystyle A\subseteq B}
However, if the formula contains an equal sign, one has to add 1= just before the formula for avoiding confusion with the template syntax; for example, {{math | 1 = ''E'' = ''mc'' {{sup | 2}}}}. Also, vertical bars, if any, must either be replaced with {} or avoided by using {}.
The symbol # is known variously in English-speaking regions as the number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .
plus sign u+002d-hyphen-minus: u+003c < less-than sign u+003d = equals sign u+003e > greater-than sign u+005e ^ circumflex accent u+007c | vertical line u+007e ~ tilde
minus sign, ampersand: ±: Plus–minus sign ('plus or minus') Approximately equal to ′ ″ ‴ Prime (symbol) Apostrophe, quotation marks: foot (unit), Inch, Minute, Second? Question mark: Inverted question mark, Interrobang “ ” " " ‘ ’ ' ' Quotation marks: Apostrophe, Ditto, Guillemets, Prime: Inch, Second ® Registered trademark ...