Unicode Character
Reference details for U+220E in the Mathematical Operators block. The full explorer and side panel load next, but the canonical page context is available immediately.
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U+220E
A solid black square, also known as the 'Halmos symbol' or 'tombstone'.
Category
Math_Symbol
Unicode label
U+220E
Canonical URL
/mathematical-operators/end-of-proof
Adjacent canonical character links in the current block.
INCREMENT
U+2206
NABLA
U+2207
ELEMENT OF
U+2208
NOT AN ELEMENT OF
U+2209
SMALL ELEMENT OF
U+220A
CONTAINS AS MEMBER
U+220B
DOES NOT CONTAIN AS MEMBER
U+220C
SMALL CONTAINS AS MEMBER
U+220D
N-ARY PRODUCT
U+220F
N-ARY COPRODUCT
U+2210
N-ARY SUMMATION
U+2211
MINUS SIGN
U+2212
MINUS-OR-PLUS SIGN
U+2213
DOT PLUS
U+2214
DIVISION SLASH
U+2215
SET MINUS
U+2216