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Topdecl

Topdecl-kind

Get the kind (tag) of a topdecl structure.

Signature
(topdecl-kind x) → kind
Arguments: x — Guard (topdeclp x).

Definitions and Theorems

Function: topdecl-kind$inline

(defun topdecl-kind$inline (x)
  (declare (xargs :guard (topdeclp x)))
  (let ((__function__ 'topdecl-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :function))
                       :function)
                      ((eq (car x) :struct) :struct)
                      (t :mapping))
         :exec (car x))))

Theorem: topdecl-kind-possibilities

(defthm topdecl-kind-possibilities
  (or (equal (topdecl-kind x) :function)
      (equal (topdecl-kind x) :struct)
      (equal (topdecl-kind x) :mapping))
  :rule-classes
  ((:forward-chaining :trigger-terms ((topdecl-kind x)))))