unreserve_words : string list -> unit
Remove given strings from the set of reserved words.
Certain identifiers in HOL are reserved, e.g. `if', `let' and `|',
meaning that they are special to the parser and cannot be used as ordinary
identifiers. The call unreserve_words l removes all strings in l from the
list of reserved identifiers.
- FAILURE CONDITIONS
Never fails, regardless of whether the given strings were in fact reserved.
The initial set of reserved words in HOL Light should be unreserved only with
great care, since then various elementary constructs may fail to parse.
- SEE ALSO
is_reserved_word, reserved_words, reserve_words.