Get the init field from a desiniter.
(desiniter->init x) → init
This is an ordinary field accessor created by fty::defprod.
Function:
(defun desiniter->init$inline (x) (declare (xargs :guard (desiniterp x))) (declare (xargs :guard t)) (let ((__function__ 'desiniter->init)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (initer-fix (cdr (std::da-nth 1 x)))) :exec (cdr (std::da-nth 1 x)))))
Theorem:
(defthm initerp-of-desiniter->init (b* ((init (desiniter->init$inline x))) (initerp init)) :rule-classes :rewrite)
Theorem:
(defthm desiniter->init$inline-of-desiniter-fix-x (equal (desiniter->init$inline (desiniter-fix x)) (desiniter->init$inline x)))
Theorem:
(defthm desiniter->init$inline-desiniter-equiv-congruence-on-x (implies (desiniter-equiv x x-equiv) (equal (desiniter->init$inline x) (desiniter->init$inline x-equiv))) :rule-classes :congruence)