In mathematical notation, ordered set operators indicate whether an object precedes or succeeds another. These relationship operators are denoted by the unicode symbols U+227A-F, along with symbols located unicode blocks U+228x through U+22Ex.

Mathematical Operators[1] (PDF)
0123456789ABCDEF
U+227x≰≱≲≳≴≵≶≷≸≹≺≻≼≽≾≿
U+228x⊀⊁⊂⊃⊄⊅⊆⊇⊈⊉⊊⊋⊌⊍⊎⊏
U+22Bx⊰⊱⊲⊳⊴⊵⊶⊷⊸⊹⊺⊻⊼⊽⊾⊿
U+22Dx⋐⋑⋒⋓⋔⋕⋖⋗⋘⋙⋚⋛⋜⋝⋞⋟
U+22Ex⋠⋡⋢⋣⋤⋥⋦⋧⋨⋩⋪⋫⋬⋭⋮⋯
Notes 1.^ As of Unicode version 7.0

Examples

  • The relationship x precedes y is written x ≺ y. The relation x precedes or is equal to y is written x ≼ y.
  • The relationship x succeeds (or follows) y is written x ≻ y. The relation x succeeds or is equal to y is written x ≽ y.[citation needed]

Use in political science

In Political science and Decision theory, order relations are typically used in the context of an agent's choice, for example the preferences of a voter over several political candidates.

  • x ≺ y means that the voter prefers candidate y over candidate x.
  • x ~ y means the voter is indifferent between candidates x and y.
  • x ≲ y means the voter is indifferent or prefers candidate y.

See also

External links

  • Wolfram Mathworld: and