A bold, white, threedimensional letter x isolated on a transparent background, representing a concept of negation or a variable
Schlüsselwörter
letter,
alphabet,
character,
symbol,
shape,
form,
design,
graphic,
object,
element,
component,
part,
piece,
item,
thing,
concept,
idea,
meaning,
representation,
signs,
mark,
label,
identifier,
variable,
unknown,
factor,
term,
equation,
mathematic,
algebra
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