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Struct-denv-option

Struct-denv-option-kind

Get the kind (tag) of a struct-denv-option structure.

Signature
(struct-denv-option-kind x) → kind
Arguments: x — Guard (struct-denv-optionp x).

Definitions and Theorems

Function: struct-denv-option-kind$inline

(defun struct-denv-option-kind$inline (x)
  (declare (xargs :guard (struct-denv-optionp x)))
  (let ((__function__ 'struct-denv-option-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :some)) :some)
                      (t :none))
         :exec (car x))))

Theorem: struct-denv-option-kind-possibilities

(defthm struct-denv-option-kind-possibilities
 (or (equal (struct-denv-option-kind x)
            :some)
     (equal (struct-denv-option-kind x)
            :none))
 :rule-classes
 ((:forward-chaining :trigger-terms ((struct-denv-option-kind x)))))