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