Property[item, name -> value] associates the property name -> value with item.
Properties is an option that allows specification of properties to objects and items of objects.
Integrated into the Mathematica system are powerful functions for analyzing large volumes of discrete and integer data—often conveniently specified using Mathematica's ...
NumberFieldFundamentalUnits[a] gives a list of fundamental units for the field \[DoubleStruckCapitalQ][a] generated by the algebraic number a.
Mathematica supports a large collection of relational operator characters, each of which can also be used as an element of Mathematica syntax, representing a formal operator ...
Or
(Built-in Mathematica Symbol) e_1 || e_2 || ... is the logical OR function. It evaluates its arguments in order, giving True immediately if any of them are True, and False if they are all False.
Mathematica encapsulates in a small number of functions vast flexibility in rearranging lists with any structure and any number of elements.
ToRadicals[expr] attempts to express all Root objects in expr in terms of radicals.
FindVertexCover[g] finds a vertex cover of the graph g with a minimum number of vertices.
SetProperty[{obj, item}, name -> value] sets the property name -> value for item in obj.