Signs and symbols of comparison : left right double arrow (double implication, equivalence)

Verbal Wording in Greek

αμφίδρομο διπλό βέλος (διπλή συνεπαγωγή, ισοδυναμία)

Verbal Wording in English

left right double arrow (double implication, equivalence)

Category

Signs and symbols of comparison

Unicode

u+21d4

LaTeX

\Leftrightarrow

MathML Code

\Leftrightarrow

MathML Example

A \Leftrightarrow B

Nemeth Code

⠫⠪⠶⠶⠕

Nemeth Example

⠠⠁ ⠫⠪⠶⠶⠕ ⠠⠃

Marburg Code

⠪⠶⠶⠕

⠹⠐⠶⠂

UEB Code

BAUK Code

⠳⠪⠒⠕

Spanish Code

⠪⠒⠕

Woluwe Code

⠂⠶⠂

Antoine Code

⠐⠒⠂

Swedish Code

⠪⠶⠕

Finnish Code

⠣⠤⠤⠱

Italian Code

⠪⠒⠕

Russian Code

⠣⠶⠜

Arabic Code

⠻⠪⠪⠒⠒⠕⠕

COM_CUSFIELD_CHINESE

⠣⠶⠜

COM_CUSFIELD_CZECH

⠪⠶⠕