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