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Fhg-single-args

Fhg-single-args-p

Recognizer for fhg-single-args structures.

Signature
(fhg-single-args-p x) → *

Definitions and Theorems

Function: fhg-single-args-p

(defun fhg-single-args-p (x)
 (declare (xargs :guard t))
 (let ((acl2::__function__ 'fhg-single-args-p))
  (declare (ignorable acl2::__function__))
  (and
   (mbe
      :logic (and (alistp x)
                  (equal (strip-cars x)
                         '(fn actuals fn-returns-hint-acc
                              fn-more-returns-hint-acc lambda-acc)))
      :exec (fty::alist-with-carsp
                 x
                 '(fn actuals fn-returns-hint-acc
                      fn-more-returns-hint-acc lambda-acc)))
   (b* ((fn (cdr (std::da-nth 0 x)))
        (actuals (cdr (std::da-nth 1 x)))
        (fn-returns-hint-acc (cdr (std::da-nth 2 x)))
        (fn-more-returns-hint-acc (cdr (std::da-nth 3 x)))
        (lambda-acc (cdr (std::da-nth 4 x))))
     (and (func-p fn)
          (pseudo-term-listp actuals)
          (hint-pair-listp fn-returns-hint-acc)
          (hint-pair-listp fn-more-returns-hint-acc)
          (lambda-binding-listp lambda-acc))))))

Theorem: consp-when-fhg-single-args-p

(defthm consp-when-fhg-single-args-p
  (implies (fhg-single-args-p x)
           (consp x))
  :rule-classes :compound-recognizer)