Timeline for Is language $\{a,b\}^*$ same as language $\{xy \in \{a,b\}^* \mid |x|_a = |y|_b \}$?
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| when toggle format | what | by | license | comment | |
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| Mar 7, 2017 at 8:31 | comment | added | Hendrik Jan | In his answer to a related question Gilles observes that in fact we can take $|x| = |z|_b$. Clever! | |
| Mar 7, 2017 at 0:26 | history | answered | Hendrik Jan | CC BY-SA 3.0 |