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5.3.32 t [Constant Variable]

Constant Value::

t.

Description::

The boolean representing true, and the canonical generalized boolean representing true. Although any object other than nil is considered true, t is generally used when there is no special reason to prefer one such object over another.

The symbol t is also sometimes used for other purposes as well. For example, as the name of a class, as a designator (e.g., a stream designator) or as a special symbol for some syntactic reason (e.g., in case and typecase to label the otherwise-clause).

Examples::
      t =>  T
      (eq t 't) =>  true
      (find-class 't) =>  #<CLASS T 610703333>
      (case 'a (a 1) (t 2)) =>  1
      (case 'b (a 1) (t 2)) =>  2
      (prin1 'hello t)
      |>  HELLO
     =>  HELLO
See Also::

NIL