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Dec-integer-literal

Dec-integer-literalp

Recognizer for dec-integer-literal structures.

Signature
(dec-integer-literalp x) → *

Definitions and Theorems

Function: dec-integer-literalp

(defun dec-integer-literalp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'dec-integer-literalp))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :dec-integer-lit)
         (true-listp (cdr x))
         (eql (len (cdr x)) 2)
         (b* ((digits/uscores (std::da-nth 0 (cdr x)))
              (suffix? (std::da-nth 1 (cdr x))))
           (and (decdig/uscore-listp digits/uscores)
                (optional-integer-type-suffix-p suffix?)
                (decdig/uscore-list-wfp digits/uscores))))))

Theorem: consp-when-dec-integer-literalp

(defthm consp-when-dec-integer-literalp
  (implies (dec-integer-literalp x)
           (consp x))
  :rule-classes :compound-recognizer)