IN-PACKAGE.html -- ACL2 Version 6.3

## IN-PACKAGE

select current package

    Major Section:  OTHER

    Example:
    (in-package "MY-PKG")

    General Form:
    (in-package str)

where `str` is a string that names an existing ACL2 package, i.e., one of the initial packages such as `"KEYWORD"` or `"ACL2"` or a package introduced with `defpkg`. For a complete list of the known packages created with `defpkg`, evaluate

    (strip-cars (known-package-alist state)).

See defpkg. An ACL2 book (see books) must contain a single `in-package` form, which must be the first form in that book.