not is an operation. overload - Package for overloading perl operations in the Perl core documentation states that:
Autogenerated method substitutions are possible for the following operations: ...

! and not can be expressed in terms of boolean conversion, or string or numerical conversion.

Similarly, perlfunc - Perl builtin functions includes a list of Perl's builtin functions, and not is not included.

So I would say that based upon the Perl 5.6 core documentation not is an operator.

In reply to Re: not: function or operator? by sierrathedog04
in thread not: function or operator? by MrNobo1024

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