String transformations
An example of a rule that allows one to go from any string of A's and B's to any other is
{"A"  "AA", "AA"  "A", "A"  "B", "B"  "A"}
(Compare page 1038.)
String transformations
An example of a rule that allows one to go from any string of A's and B's to any other is
{"A"  "AA", "AA"  "A", "A"  "B", "B"  "A"}
(Compare page 1038.)