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Utilities

Nat-listp

(nat-listp x) recognizes lists where every element satisfies natp.

Signature
(nat-listp x) → std::bool

This is an ordinary deflist. It is "loose" in that it does not care whether x is nil-terminated.

Definitions and Theorems

Function: nat-listp

(defun nat-listp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'nat-listp))
    (declare (ignorable __function__))
    (if (consp x)
        (and (natp (car x)) (nat-listp (cdr x)))
      t)))

Subtopics

Nat-listp-basics: Basic theorems about nat-listp, generated by deflist.