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Svex/index

Svex/index-p

Recognizer for svex/index structures.

Signature
(svex/index-p x) → *

Definitions and Theorems

Function: svex/index-p

(defun svex/index-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'svex/index-p))
    (declare (ignorable __function__))
    (and (std::prod-consp x)
         (b* ((expr (std::prod-car x))
              (idx (std::prod-cdr x)))
           (and (svex-p expr) (integerp idx))))))

Theorem: consp-when-svex/index-p

(defthm consp-when-svex/index-p
  (implies (svex/index-p x) (consp x))
  :rule-classes :compound-recognizer)