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Dec 31, 2023 at 10:39 comment added H A Helfgott I've said "Brun-Titchmarsh". Of course that has $\pi(x+y) - \pi(x) \leq 2 \frac{y}{\log y}$ as a special case!
Dec 31, 2023 at 9:18 comment added Daniel Weber From the comments on that answer there's a known $\pi(x+y) - \pi(x) \leq 2\frac{y}{\log y}$, is that strong enough? There's some error introduced by prime powers, but it might be negligible.
Dec 31, 2023 at 8:56 comment added H A Helfgott @CommandMaster Proving matters oneself as in Brun-Titchmarsh (sieve) would seem to make more sense. It just seems very unlikely that it hasn't been done already.
Dec 31, 2023 at 5:04 comment added Daniel Weber mathoverflow.net/questions/235463/… seems relevant. Does partial summation introduce too much error?
Dec 31, 2023 at 4:56 comment added H A Helfgott It would be best if $y$ could be allowed to be arbitrarily small (just as in Brun-Titchmarsh).
Dec 31, 2023 at 4:52 comment added Daniel Weber How small is your $y$ compared to $x$?
Dec 31, 2023 at 4:38 history asked H A Helfgott CC BY-SA 4.0