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Soft-implementation-core

Funvar-inst-listp

Recognize true lists of instantiations.

Signature
(funvar-inst-listp insts wrld) → yes/no
Arguments: wrld — Guard (plist-worldp wrld).
Returns: yes/no — Type (booleanp yes/no).

Definitions and Theorems

Function: funvar-inst-listp

(defun funvar-inst-listp (insts wrld)
  (declare (xargs :guard (plist-worldp wrld)))
  (let ((__function__ 'funvar-inst-listp))
    (declare (ignorable __function__))
    (if (atom insts)
        (null insts)
      (and (funvar-instp (car insts) wrld)
           (funvar-inst-listp (cdr insts) wrld)))))

Theorem: booleanp-of-funvar-inst-listp

(defthm booleanp-of-funvar-inst-listp
  (b* ((yes/no (funvar-inst-listp insts wrld)))
    (booleanp yes/no))
  :rule-classes :rewrite)