jgwhite/computationbook — pull request #1 by mocoso (2013-08-15 08:08:28+00:00)
Title: Reduce numbers of states and rules for Tom's book club challenge

This reduces the number of rules from 21 to 12, and the number of states from 8 to 4 but involves the addition of 1 new symbol.

The key changes were

- Remove the accept states so that the machine simply gets stuck to finish
- Simplify the increment function to use less states
- Use 'X' for deletions