type_vars_in_term
Term.type_vars_in_term : term -> hol_type list
Return the type variables occurring in a term.
An invocation type_vars_in_term M
returns the set of
type variables occurring in M
.
Never fails.
- type_vars_in_term (concl boolTheory.ONE_ONE_DEF);
> val it = [`:'b`, `:'a`] : hol_type list