在構建ACL2書籍時,出現以下錯誤。我如何擺脫它? Magic number checking on storable file failed at ../../lib/Storable.pm (autosplit into ../../lib/auto/Storable/_retrieve.al) line 380, at /<elided>/sw/acl2/books/build/certli
我試圖在ACL2中以一元符號(O,(S O),(S (S O)),...)對自然數進行建模並證明加法的交換性。這裏是我的嘗試: ; a NATURAL is 'O or a list ('S n') where n' is a NATURAL
(defun naturalp (n)
(cond ((equal n 'O) t)
(t (and (true-listp n)