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Unicode
Blocks
Supplemental Arrows-B
U+2916
RIGHTWARDS TWO-HEADED ARROW WITH TAIL
⤖
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U+2916
Properties
Category
Math Symbol
Script
Common
Annotations
=
alias
bijective mapping
=
alias
z notation bijection
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cross-reference
U+2B3B
⬻
LEFTWARDS TWO-HEADED ARROW WITH TAIL