https://en.wikipedia.org/wiki/Glossary_of_mathematical_symbols
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various

https://math.stackexchange.com/questions/864606/difference-between-%E2%89%88-%E2%89%83-and-%E2%89%85
In LaTeX it is coded as \cong. ∼ ∼ is a similarity in geometry and can be used to show that two things are asymptotically equal (they become more equal as you increase a variable like n n ). This is a weaker statement than the other two. In LaTeX it is coded as \sim. ≃ ≃ is more of a grab-bag of meaning.

https://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.Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, and the LaTeX symbol.

https://www.mathsisfun.com/algebra/symbols.html
2[ a−3(b+c) ] { } set symbols (curly brackets) {1,2,3} = equals: 1+1 = 2: ≈: approximately equal to: π ≈ 3.14: ≠: not equal to: π ≠ 2 < ≤: less than, less than or equal to: 2 < 3 > ≥: greater than, greater than or equal to: 5 > 1: ⇒: implies (if ... then) a and b are odd ⇒ a+b is even: ⇔ "if and only if" or iff or "is

https://wumbo.net/symbols/approximately/
The approximately symbol (≈) is used in math to indicate that two expressions are approximately equal to each other. Typically, the symbol is used in an expression like this: In plain language, this means that the constant π (pi) is approximately equal to the value 3.14. In reality, the value of the constant π is irrational and continues

https://simple.wikipedia.org/wiki/List_of_mathematical_symbols
The list below has some of the most common symbols in mathematics. However, these symbols can have other meanings in different contexts other than math. If x=y, x and y represent the same value or thing. If x≈y, x and y are almost equal. If x≠y, x and y do not represent the same value or thing. If x<y, x is less than y.

https://en.wikipedia.org/wiki/Plus_and_minus_signs
The plus sign (+) and the minus sign (−) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference. Their use has been extended to many other meanings, more or less analogous. Plus and minus are Latin terms meaning "more" and

https://www.mathsisfun.com/symbols.html
2[ a−3(b+c) ] { } set symbols {1, 2, 3} π: pi: A = π r 2: ∞: infinity: ∞ is endless = equals: 1+1 = 2: ≈: approximately equal to: π ≈ 3.14: ≠: not equal to: π ≠ 2 < ≤: less than, less than or equal to: 2 < 3 > ≥: greater than, greater than or equal to: 5 > 1: √: square root ("radical") √4 = 2 ° degrees: 20° ∴

https://en.wiktionary.org/wiki/%E2%89%88
Symbol. ( mathematics) Approximately equal to. ( topology) Homeomorphic to.

https://wumbo.net/symbols/dot-operator/
The dot operator symbol is used in math to represent multiplication and, in the context of linear algebra, as the dot product operator. Typically, the symbol is used in an expression like this: 3⋅ 5. In plain language, this expression means three multiplied by five. The interpunct symbol also referred to as the middle dot, dot product symbol

https://math.stackexchange.com/questions/1614875/what-does-%E2%89%BC-or-%E2%89%BA-mean
I think it's probably just notation to distinguish the ordering on F F from that on E E. Other acceptable symbols include ⪯ ⪯, ⊑ ⊑, etc. To explain what they mean by X ⪯ Y ⇔ X = X ∧ Y X ⪯ Y ⇔ X = X ∧ Y, they are referring to the Meet of X X and Y Y. You have x ∧ y = z ⇔ z ⪯ x x ∧ y = z ⇔ z ⪯ x and z ⪯ y z ⪯ y.

https://www.mathematics-monster.com/symbols/Not-Sign.html
The "Not Sign" Symbol (¬): Expressing Negation. In the diverse realm of mathematical notation, the ¬ symbol, commonly referred to as the "Not Sign," stands out as a straightforward indicator of negation or denial. It's a pivotal tool for expressing logical operations, particularly in the fields of mathematics, logic, and computer science.

https://en.wikipedia.org/wiki/Multiplication_sign
The multiplication sign (×), also known as the times sign or the dimension sign, is a mathematical symbol used to denote the operation of multiplication, which results in a product. While similar to a lowercase X (x), the form is properly a four-fold rotationally symmetric saltire.. The symbol is also used in botany, in botanical hybrid names and the heavy goods vehicle industry, to calculate

https://www.mathsisfun.com/algebra/brackets.html
parentheses or "round brackets" ( ) "square brackets" or "box brackets" [ ] braces or "curly brackets" { } "angle brackets" < >. (Note: Angle brackets can be confusing as they look like the "less than" and "greater than" signs) When we see things inside brackets we do them first (as explained in Order of Operations ).

https://mathworld.wolfram.com/Parenthesis.html
One of the symbols ( or ) used to denote grouping. Parentheses have a great many specialized meanings in mathematics. A few of these are described below. 1. Parentheses are used in mathematical expressions to denote modifications to normal order of operations (precedence rules). In an expression like (3+5)×7, the part of the expression within the parentheses, (3+5)=8, is evaluated first, and

https://wumbo.net/symbols/minus/
The minus symbol is used in math to represent subtraction. Typically, the symbol is used in an expression like this: In plain language, this expression represents 6 minus 5. Note, the code point of this character is different from the hyphen symbol (-) on the keyboard even though they are usually used to mean the same thing. The minus symbol is

https://www.mathematics-monster.com/symbols/Therefore.html
Given: For any integer \( n \), if \( n^2 \) is even, then \( n \) is even. \( 4^2 = 16 \) which is even. ∴ 4 is even. Here, the ∴ symbol helps derive a specific case's conclusion based on a general statement. In summary, the ∴ symbol is a concise and efficient way to indicate the result or conclusion derived from certain facts or

https://www.mathematics-monster.com/symbols/Tilde-Operator.html
Here, the tilde indicates that 3.14 is an approximation of π. To wrap up, the ∼ symbol is versatile and widely adopted in various mathematical contexts. Its usage mainly revolves around the concepts of similarity, equivalence, or approximation. It's an efficient way to convey these concepts without the need for verbose explanations.

https://en.wikipedia.org/wiki/Mathematical_operators_and_symbols_in_Unicode
The Unicode Standard encodes almost all standard characters used in mathematics. Unicode Technical Report #25 provides comprehensive information about the character repertoire, their properties, and guidelines for implementation. Mathematical operators and symbols are in multiple Unicode blocks.Some of these blocks are dedicated to, or primarily contain, mathematical characters while others

https://wumbo.net/symbols/element-of/
Element of Symbol. The ∈ (member of) symbol indicates that an expression on the left-hand side of the symbol belongs to or is in the set on the right-hand side of the symbol. Typically the symbol is used in an expression like this: In plain language, this means that the variable x is a member of the set of real numbers denoted by the symbol R.

https://math.stackexchange.com/questions/2788219/whats-the-difference-between-%E2%89%A1-and-%E2%89%A3
3. ≡ ≡ and similar variations are a generic symbols used to notate an equivalence relation. = = is the specific equivalence relation "equals" that we are used to with sets and natural numbers and by extension is also the symbol used for equality of rational, real, complex numbers etc... For more information on the definition of a specific