Lecture 3
Lecture 3
Lecture 3
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Quotient of languages<br />
If L1 and L2 are languages then<br />
L1/L2 = {x | ∃y∊L2 such that xy∊L1}<br />
It’s true that if L1 and L2 are regular so is L1/L2<br />
But here’s a stronger result<br />
If L is a regular language and S is an arbitrary<br />
set then L/S is regular<br />
Friday, February 8, 13
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