Descending wedge

The descending wedge symbol ∨ may represent:


 * Logical disjunction in propositional logic
 * Join in lattice theory
 * The wedge sum in topology
 * The V sign, a symbol representing peace among other things

The vertically reflected symbol, ∧, is a wedge, and often denotes related or dual operators.

The ∨ symbol was introduced by Russell and Whitehead in Principia Mathematica, where they called it the Logical Sum or Disjunctive Function.

In Unicode the symbol is encoded. In TeX, it is  or.

One motivation and the most probable explanation for the choice of the symbol ∨ is the latin word "vel" meaning "or" in the inclusive sense. Several authors use "vel" as name of the "or" function.