Горшок-стульчик детский с аппликацией «Me to You», голубой

You should note at the outset that Common Lisp's object system offers a fairly different embodiment of the principles of object orientation than many other languages. If you have a deep understanding of the fundamental ideas behind object orientation, you'll likely appreciate the particularly powerful and general way Common Lisp manifests those ideas. On the other hand, if your experience with object orientation has been largely with a single language, you may find Common Lisp's approach somewhat foreign; you should try to avoid assuming that there's only one way for a language to support object orientation.[171] If you have little object-oriented programming experience, you should have no trouble understanding the explanations here, though it may help to ignore the occasional comparisons to the way other languages do things. Generic Functions and Classes The fundamental idea of object orientation is that a powerful way to organize a program is to define data types and then associate operations with those data types ...»