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