Get the decl? field from a dirabsdeclor-function.
(dirabsdeclor-function->decl? x) → decl?
This is an ordinary field accessor created by fty::defprod.
Function:
(defun dirabsdeclor-function->decl?$inline (x) (declare (xargs :guard (dirabsdeclorp x))) (declare (xargs :guard (equal (dirabsdeclor-kind x) :function))) (let ((__function__ 'dirabsdeclor-function->decl?)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (dirabsdeclor-kind x) :function) x))) (dirabsdeclor-option-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm dirabsdeclor-optionp-of-dirabsdeclor-function->decl? (b* ((decl? (dirabsdeclor-function->decl?$inline x))) (dirabsdeclor-optionp decl?)) :rule-classes :rewrite)
Theorem:
(defthm dirabsdeclor-function->decl?$inline-of-dirabsdeclor-fix-x (equal (dirabsdeclor-function->decl?$inline (dirabsdeclor-fix x)) (dirabsdeclor-function->decl?$inline x)))
Theorem:
(defthm dirabsdeclor-function->decl?$inline-dirabsdeclor-equiv-congruence-on-x (implies (dirabsdeclor-equiv x x-equiv) (equal (dirabsdeclor-function->decl?$inline x) (dirabsdeclor-function->decl?$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm dirabsdeclor-function->decl?-when-wrong-kind (implies (not (equal (dirabsdeclor-kind x) :function)) (equal (dirabsdeclor-function->decl? x) (dirabsdeclor-option-fix nil))))