## VERIFY

enter the interactive proof checker
Major Section: PROOF-CHECKER

For proof-checker command summaries, see proof-checker.

Examples:
(VERIFY (implies (and (true-listp x) (true-listp y))
(equal (append (append x y) z)
(append x (append y z)))))
-- Attempt to prove the given term interactively.
(VERIFY (p x)
:event-name p-always-holds
:rule-classes (:rewrite :generalize)
:instructions ((rewrite p-always-holds-lemma)
change-goal))
-- Attempt to prove (p x), where the intention is to call the
resulting DEFTHM event by the name p-always-holds, with
rule-classes as indicated. The two indicated instructions
will be run immediately to start the proof.

(VERIFY)
-- Re-enter the proof-checker in the state at which is was last
left.

General Form:
(VERIFY &OPTIONAL raw-term
&KEY
event-name
rule-classes
instructions)

`Verify`

is the function used for entering the proof-checker's
interactive loop.