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Float-value

Float-valuep

Recognizer for float-value structures.

Signature
(float-valuep x) → *

Definitions and Theorems

Function: float-valuep

(defun float-valuep (x)
  (declare (xargs :guard t))
  (let ((__function__ 'float-valuep))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :float)
         (true-listp (cdr x))
         (eql (len (cdr x)) 1)
         (b* ((float (std::da-nth 0 (cdr x))))
           (float-value-abs-p float)))))

Theorem: consp-when-float-valuep

(defthm consp-when-float-valuep
  (implies (float-valuep x) (consp x))
  :rule-classes :compound-recognizer)