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Mar 3, 2021 at 12:34 vote accept Bee
Mar 3, 2021 at 7:27 answer added Abhishek Ghosh timeline score: 2
Mar 3, 2021 at 0:41 comment added Rick Decker As a first cut, it's clear that any word derivable in this grammar must have the same number of a's as b's. This eliminates half the possibilities. @rici's answer, of course, is more precise.
Mar 3, 2021 at 0:35 history edited Bee
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Mar 2, 2021 at 23:40 comment added rici The language is a Dyck language. Perhaps if you write a as { and b as }, the pattern will be clearer.
Mar 2, 2021 at 22:00 history asked Bee CC BY-SA 4.0