∩

See also: ⋂

∩ U+2229, ∩ INTERSECTION ← ∨ [U+2228] Mathematical Operators ∪ → [U+222A]

Translingual

Glyph origin

First used as a symbol by Hermann Grassmann in 1844 for a “synthetic connection” (synthetische Verknüpfung). Adopted by Giuseppe Peano in 1888 as a set intersection symbol.

Symbol

∩

1. (set theory) intersection of two sets

Antonyms

• ∪

Related terms

• ⋂