```
0[8] (describe '+)
COMMON-LISP:+
  [symbol]

+ names a special variable:
  Declared type: T
  Declared always-bound.
  Value: (+ 2 2)
  Documentation:
    the value of the most recent top level READ

+ names a compiled function:
  Lambda-list: (&REST SB-KERNEL::NUMBERS)
  Declared type: (FUNCTION (&REST NUMBER) (VALUES NUMBER &OPTIONAL))
  Derived type: (FUNCTION (&REST T) (VALUES NUMBER &OPTIONAL))
  Documentation:
    Return the sum of its arguments. With no args, returns 0.
  Known attributes: foldable, flushable, unsafely-flushable, movable, commutative
  Source file: SYS:SRC;CODE;NUMBERS.LISP
```