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Pflat

Pflat-p

Recognizer for pflat structures.

Signature
(pflat-p x) → *

Definitions and Theorems

Function: pflat-p

(defun pflat-p (x)
  (declare (xargs :guard t))
  (let ((acl2::__function__ 'pflat-p))
    (declare (ignorable acl2::__function__))
    (and (std::prod-consp x)
         (b* ((width (std::prod-car x))
              (?what (std::prod-cdr x)))
           (posp width)))))