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Mathematica > Core Language > Defining Variables and Functions > Attributes >

Built-in Mathematica Symbol

ClearAttributes

ClearAttributes[s, attr]
removes attr from the list of attributes of the symbol s.

ClearAttributes[{s₁, s₂, ...}, attrs] removes attributes from several symbols at a time.

Set a number of attributes for the symbol f:

Clear a particular attribute; the remaining ones are retained:

Clear several attributes:

ClearAttributes is equivalent to this assignment to the attributes:

Unprotecting a symbol is equivalent to clearing the Protected attribute:

After setting the attribute Locked, no more changes to the attributes can be made: