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Equality symbol that denotes that two expressions are equal in value.

Inequality symbol that denotes that two expressions are not equal in value.

Addition symbol used to indicate the sum of two numbers or expressions.

Less than or equal to symbol, indicating that the first value is either less than or equal to the second value.

Delta, commonly used to denote change or difference in a quantity.

Union symbol in set theory denoting the set containing all elements from the given sets.

Existential quantification symbol meaning 'there exists' or 'there is at least one'.

Del operator used in vector calculus, often to denote the gradient, divergence, or curl of a field.

Theta, often used to represent an angle in geometry and trigonometry.

Greater than symbol used to compare two values, where the first is larger than the second.

Square root symbol, denoting a number that, when multiplied by itself, gives the number $x$.

Limit notation, expressing the value that function $f(x)$ approaches as $x$ approaches $a$.

Approximation symbol used when two values are close in value but not exactly equal.

Greater than or equal to symbol, indicating that the first value is either greater than or equal to the second.

Pi, a mathematical constant representing the ratio of a circle's circumference to its diameter.

Imaginary unit, used in complex numbers, where $i^2 = -1$.

Empty set symbol representing a set that contains no elements.

Division symbol representing the division of one quantity by another.

Less than symbol used to compare two values, where the first is smaller than the second.

Integral symbol, fundamental concept in calculus used to find areas under curves and accumulation of quantities.

Fraction notation, with $a$ being the numerator and $b$ being the denominator, representing the division of $a$ by $b$.

Exponential notation, where $n$ is the exponent and $x$ is the base, representing $x$ multiplied by itself $n$ times.

Multiplication symbol that denotes the product of two values.

Infinity symbol that represents an unbounded limit or quantity that is larger than any real number.

Logarithm of $x$ to the base $b$, representing the exponent to which $b$ must be raised to produce $x$.

Intersection symbol in set theory indicating the set of elements common to all given sets.

Subtraction symbol used to represent the difference between two numbers or expressions.

Summation symbol used to denote the sum of a series of terms.

Universal quantification symbol meaning 'for all' or 'for every'.