Major Section: EVENTS
Example: (in-theory (set-difference-theories (universal-theory :here) '(flatten (:executable-counterpart flatten))))whereGeneral Form: (in-theory term :doc doc-string)
term
is a term that when evaluated will produce a theory
(see theories), and doc-string
is an optional documentation
string not beginning with ``:doc-section
...''. Except for the
variable world
, term
must contain no free variables. Term
is
evaluated with the variable world
bound to the current world to
obtain a theory and the corresponding runic theory
(see theories) is then made the current theory. Thus,
immediately after the in-theory
, a rule is enabled iff its rule name
is a member of the runic interpretation (see theories) of some
member of the value of term
. See theory-functions for a list
of the commonly used theory manipulation functions.
Because no unique name is associated with an in-theory
event, there
is no way we can store the documentation string doc-string
in our
documentation data base. Hence, we actually prohibit doc-string
from having the form of an ACL2 documentation string;
see doc-string.