Upside Down U Meaning In Math
It is used in set theory to indicate intersection.
Upside down u meaning in math. For many of the symbols below the symbol is usually synonymous with its corresponding concept but in some situations a different convention may be used. The intersection of two sets a and b is the set of all elements that are in a as well as in b. A mathematical concept is independent of the symbol chosen to represent it. The symbol is an upside down u like this.
Founded in 2005 math help forum is dedicated to free math help and math discussions and our math community welcomes students teachers educators professors mathematicians engineers and scientists. Can someone explain to me what the upside down letter u symbol means. Mathematics is concerned with numbers data quantity structure space models and change. What does an upside down u mean in math.
I wikipedia d the symbol but the explanations weren t really clear. The symbol is a special u like this. Also see the more complete discussion of the first order predicate calculus as others noted it means that the stated assertions holds for all instances of the given variable here s you ll soon run into its sibling the backwards capital e which is the existential quantifier meaning there exists at least one. If an element is in just one set it is not part of the intersection.
I think i looked for the wrong symbol also because i know there is also the really big u symbol that is right side up of the letter u. The intersection of two sets has only the elements common to both sets. Not sure if both these symbols relate in any way. The upside down a symbol is the universal quantifier from predicate logic.
The following is a list of mathematical symbols used in all branches of mathematics to express a formula or to represent a constant.