Obviously, these can be represented as languages over the output alphabet, namely as the set of outputs that obey them.
We start relating strings and nets by looking at sets of places as alphabets and at families as strings on such alphabets.
A sample of about 2% of the whole, taken from various sections of the alphabet, gives a reasonable result.
One begins with a finite alphabet and a substitution rule which is used to define a space of symbolic sequences.
Consequently, there is no simple mapping between putative units of sound and the letters of the alphabet.
Either six or seven letters of the alphabet are assigned to each button.
Another room would be dedicated to drawing, reading, and writing, with cards on the walls representing letters of the alphabet, and a blackboard.
In this training session, we employed the first three letters of the alphabet, considered most familiar.
