Get the variables field from a types+vartab.
(types+vartab->variables x) → variables
This is an ordinary field accessor created by fty::defprod.
Function:
(defun types+vartab->variables$inline (x) (declare (xargs :guard (types+vartab-p x))) (declare (xargs :guard t)) (let ((__function__ 'types+vartab->variables)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (var-table-fix (cdr (std::da-nth 1 x)))) :exec (cdr (std::da-nth 1 x)))))
Theorem:
(defthm var-tablep-of-types+vartab->variables (b* ((variables (types+vartab->variables$inline x))) (var-tablep variables)) :rule-classes :rewrite)
Theorem:
(defthm types+vartab->variables$inline-of-types+vartab-fix-x (equal (types+vartab->variables$inline (types+vartab-fix x)) (types+vartab->variables$inline x)))
Theorem:
(defthm types+vartab->variables$inline-types+vartab-equiv-congruence-on-x (implies (types+vartab-equiv x x-equiv) (equal (types+vartab->variables$inline x) (types+vartab->variables$inline x-equiv))) :rule-classes :congruence)