Any mathematical statement involving an equals sign is called an equation. 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. A is a subset of B.
A collection of elements.
Tautologies are typically found in the branch of mathematics called logic. The Math Symbols from the Question about Union and Intersection The V symbols in the readers question are and which mean Logical Or and Logical And The is a capital Greek Lambda. Though it is fairly common in English to say the word equals it is also fine to use the singular is For example two plus three is five. Ifa b and if c is a negative number then a c bc.