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A Brutal Look at Balanced Parentheses, Computing Machines, and Pushdown Automata (
2 points by kinnard 212 days ago | 1 comment

2 points by jsgrahamus 212 days ago | link

Saw this on HN and was going to print it off to read later. But its 38 pages discouraged such and I bookmarked it.

Looks interesting though.