Intersection

The set intersection operator: A ∩ B is the set of elements common to both A and B. The cap opens downward, mirroring ∪; the pair should always come from the same font so their bowls match. Central to probability notation (P(A ∩ B)) and Venn-diagram captions. Space it on both sides as a binary operator.

Copy it anywhere

  • Symbol
  • UnicodeU+2229
  • HTML entity∩
  • CSS content\2229
  • JavaScript\u2229
  • URL encoded%E2%88%A9
  • Windows Alt codeAlt+239

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