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• Dirdeclor

Dirdeclorp

Recognizer for dirdeclor structures.

Signature

(dirdeclorp x) → *

Definitions and Theorems

Theorem: consp-when-dirdeclorp

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