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MUF Evaluates Words Right-to-Left

Once MUF has broken your command into words, how does it carry them out?

Remembering that MUF is a very simple-minded little program, you will not be suprised that it follows a very simple-minded little rule: It has a little dictionary of simple tasks it knows how to do, and it just works its way left-to-right through the words you gave it, looking each word up in its dictionary and performing the corresponding action. If you type a word that isn't in its dictionary, it doesn't guess or deduce what the word means, it just stops and complains about you being so unkind as to use a word it doesn't know.

In a moment, we'll give some examples of words that MUF knows. (Later on, we'll show you how to teach MUF new words, which is where the real fun begins!) But first, let me note that, like every good rule, the left-to-right one has a few exceptions. There are times when we'd like MUF to do the same sequence of words a dozen times (or perhaps a thousand or a million) without having to type them in a dozen times: MUF knows some special words which allow you to do this. We'll get to these presently.


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