File: find_theory.doc

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\DOC find_theory

\TYPE {find_theory : (string -> string)}

\SYNOPSIS
Attempts to find a named theory.

\DESCRIBE
Given a string {`foo`}, {find_theory} attempts to find the theory file
{`foo.th`} using the current search path. If it succeeds, it returns a full
pathname (possibly a relative pathname identical to the argument string).

\FAILURE
Fails if the named theory file cannot be found using the current search path.

\EXAMPLE
{
#find_theory `num`;;
`/usr/groups/hol/HOL2/sun4_sos/theories/num.th` : string
}
\SEEALSO
find_file, find_ml_file, search_path, set_search_path.

\ENDDOC