File: variables.doc

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\DOC variables

\TYPE {variables : term -> term list}

\SYNOPSIS
Determines the variables used, free or bound, in a given term.

\DESCRIBE
Given a term argument, {variables} returns a list of variables that occur free
or bound in that term.

\EXAMPLE
{
  # variables `\a:bool. a`;;
  val it : term list = [`a`]
  # variables `(a:num) + (b:num)`;;
  val it : term list = [`b`; `a`]
}

\SEEALSO
frees, free_in.

\ENDDOC