Basic theorems about expr-listp, generated by std::deflist.
Theorem:
(defthm expr-listp-of-cons (equal (expr-listp (cons acl2::a acl2::x)) (and (exprp acl2::a) (expr-listp acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm expr-listp-of-cdr-when-expr-listp (implies (expr-listp (double-rewrite acl2::x)) (expr-listp (cdr acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm expr-listp-when-not-consp (implies (not (consp acl2::x)) (equal (expr-listp acl2::x) (not acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm exprp-of-car-when-expr-listp (implies (expr-listp acl2::x) (iff (exprp (car acl2::x)) (consp acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm true-listp-when-expr-listp-compound-recognizer (implies (expr-listp acl2::x) (true-listp acl2::x)) :rule-classes :compound-recognizer)
Theorem:
(defthm expr-listp-of-list-fix (implies (expr-listp acl2::x) (expr-listp (list-fix acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm expr-listp-of-rev (equal (expr-listp (rev acl2::x)) (expr-listp (list-fix acl2::x))) :rule-classes ((:rewrite)))
Theorem:
(defthm expr-listp-of-append (equal (expr-listp (append acl2::a acl2::b)) (and (expr-listp (list-fix acl2::a)) (expr-listp acl2::b))) :rule-classes ((:rewrite)))