Get the parameters field from a tfunction-lambda.
(tfunction-lambda->parameters x) → parameters
This is an ordinary field accessor created by fty::defprod.
Function:
(defun tfunction-lambda->parameters$inline (x) (declare (xargs :guard (tfunctionp x))) (declare (xargs :guard (equal (tfunction-kind x) :lambda))) (let ((__function__ 'tfunction-lambda->parameters)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and (equal (tfunction-kind x) :lambda) x))) (symbol-value-list-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm symbol-value-listp-of-tfunction-lambda->parameters (b* ((parameters (tfunction-lambda->parameters$inline x))) (symbol-value-listp parameters)) :rule-classes :rewrite)
Theorem:
(defthm tfunction-lambda->parameters$inline-of-tfunction-fix-x (equal (tfunction-lambda->parameters$inline (tfunction-fix x)) (tfunction-lambda->parameters$inline x)))
Theorem:
(defthm tfunction-lambda->parameters$inline-tfunction-equiv-congruence-on-x (implies (tfunction-equiv x x-equiv) (equal (tfunction-lambda->parameters$inline x) (tfunction-lambda->parameters$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm tfunction-lambda->parameters-when-wrong-kind (implies (not (equal (tfunction-kind x) :lambda)) (equal (tfunction-lambda->parameters x) (symbol-value-list-fix nil))))