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• Std/lists/abstract

Element-listxformer

Generic element-list transform for mapappend

Definitions and Theorems

Theorem: outelement-list-p-of-element-listxformer

(defthm outelement-list-p-of-element-listxformer
  (implies (element-p x)
           (outelement-list-p (element-listxformer x))))