Get the expr field from a amb-expr/tyname.
(amb-expr/tyname->expr x) → expr
This is an ordinary field accessor created by fty::defprod.
Function:
(defun amb-expr/tyname->expr$inline (x) (declare (xargs :guard (amb-expr/tyname-p x))) (declare (xargs :guard t)) (let ((__function__ 'amb-expr/tyname->expr)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (expr-fix (cdr (std::da-nth 0 x)))) :exec (cdr (std::da-nth 0 x)))))
Theorem:
(defthm exprp-of-amb-expr/tyname->expr (b* ((expr (amb-expr/tyname->expr$inline x))) (exprp expr)) :rule-classes :rewrite)
Theorem:
(defthm amb-expr/tyname->expr$inline-of-amb-expr/tyname-fix-x (equal (amb-expr/tyname->expr$inline (amb-expr/tyname-fix x)) (amb-expr/tyname->expr$inline x)))
Theorem:
(defthm amb-expr/tyname->expr$inline-amb-expr/tyname-equiv-congruence-on-x (implies (amb-expr/tyname-equiv x x-equiv) (equal (amb-expr/tyname->expr$inline x) (amb-expr/tyname->expr$inline x-equiv))) :rule-classes :congruence)