Major Section: THEORIES
Example:
(intersection-theories (current-theory :here)
(theory 'arith-patch))
General Form:
(intersection-theories th1 th2)
where th1 and th2 are theories (see theories). To each of
the arguments there corresponds a runic theory. This function
returns the intersection of those two runic theories, represented as
a list and ordered chronologically.This ``function'' is actually a macro that expands to a term
mentioning the single free variable world. When theory expressions
are evaluated by in-theory or the :in-theory hint, world is bound to
the current ACL2 world.
