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Tfunction

Tfunction-kind

Get the kind (tag) of a tfunction structure.

Signature
(tfunction-kind x) → kind
Arguments: x — Guard (tfunctionp x).

Definitions and Theorems

Function: tfunction-kind$inline

(defun tfunction-kind$inline (x)
  (declare (xargs :guard (tfunctionp x)))
  (let ((__function__ 'tfunction-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :named))
                       :named)
                      (t :lambda))
         :exec (car x))))

Theorem: tfunction-kind-possibilities

(defthm tfunction-kind-possibilities
  (or (equal (tfunction-kind x) :named)
      (equal (tfunction-kind x) :lambda))
  :rule-classes
  ((:forward-chaining :trigger-terms ((tfunction-kind x)))))