Search results
Results from the WOW.Com Content Network
Given a set , a set is defined to be , if it is definable by a , formula in which the symbol is interpreted as ; similar definitions for , and , apply. The sets that are Σ n 1 , Y {\displaystyle \Sigma _{n}^{1,Y}} or Π n 1 , Y {\displaystyle \Pi _{n}^{1,Y}} , for any parameter Y , are classified in the projective hierarchy , and often denoted ...
In mathematics, the solution set of a system of equations or inequality is the set of all its solutions, that is the values that satisfy all equations and inequalities. [1] Also, the solution set or the truth set of a statement or a predicate is the set of all values that satisfy it. If there is no solution, the solution set is the empty set. [2]
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 types, many symbols are needed for ...
However, if one searches for real solutions, there are two solutions, √ 2 and – √ 2; in other words, the solution set is {√ 2, − √ 2}. When an equation contains several unknowns, and when one has several equations with more unknowns than equations, the solution set is often infinite. In this case, the solutions cannot be listed.
Latin and Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities.
In Formula One, each car is numbered. Since the inaugural Formula One World Championship in 1950, several numbering systems have been used. This list covers the numbers used by drivers since the start of the 2014 Formula One season, when drivers have been allowed to choose a number that they would carry throughout their career. [1]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A binary equaliser (that is, an equaliser of just two functions) is also called a difference kernel.This may also be denoted DiffKer(f, g), Ker(f, g), or Ker(f − g).The last notation shows where this terminology comes from, and why it is most common in the context of abstract algebra: The difference kernel of f and g is simply the kernel of the difference f − g.