File: vars.doc

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\DOC vars

\TYPE {vars : (term -> term list)}

\SYNOPSIS
Determines the variables used in a given term.

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

\EXAMPLE
{
#vars "\a:bool. a";;
["a"] : term list

#vars "\b:*. SUC 0";;
["b"] : term list

#vars "(a:num) + (b:num)";;
["a"; "b"] : term list
}
\SEEALSO
varsl.

\ENDDOC