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