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• Std/lists/abstract

Generic-eval-requirement

Evaluate a requirement of a generic theorem for deflist/defprojection/defmapappend

See ACL2::std/lists/abstract.

Definitions and Theorems

Function: generic-eval-requirement

(defun generic-eval-requirement (req req-alist)
       (if (atom req)
           (let ((look (assoc req req-alist)))
                (if look (cdr look)
                    (er hard? 'generic-eval-requirement
                        "Unrecognized requirement variable: ~x0~%"
                        req)))
           (case (car req)
                 ('not
                  (not (generic-eval-requirement (cadr req)
                                                 req-alist)))
                 ('and
                  (generic-and-requirements (cdr req)
                                            req-alist))
                 ('or
                  (generic-or-requirements (cdr req)
                                           req-alist))
                 ('if
                  (if (generic-eval-requirement (cadr req)
                                                req-alist)
                      (generic-eval-requirement (caddr req)
                                                req-alist)
                      (generic-eval-requirement (cadddr req)
                                                req-alist)))
                 (otherwise (er hard? 'generic-eval-requirement
                                "malformed requirement term: ~x0~%"
                                req)))))

Function: generic-and-requirements

(defun generic-and-requirements
       (reqs req-alist)
       (if (atom reqs)
           t
           (and (generic-eval-requirement (car reqs)
                                          req-alist)
                (generic-and-requirements (cdr reqs)
                                          req-alist))))

Function: generic-or-requirements

(defun generic-or-requirements (reqs req-alist)
       (if (atom reqs)
           nil
           (or (generic-eval-requirement (car reqs)
                                         req-alist)
               (generic-or-requirements (cdr reqs)
                                        req-alist))))