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