CURED - 2023-07-29

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Shaun

04:07

Why was this deleted?

math.stackexchange.com/q/4361739/104041

Feeds

04:22

A: Requests for Reopen & Undeletion Votes (volume 01/2022 - today)

The following was closed and deleted, presumably because is contains two exercises, and a cursory reading might place it, therefore, as needing focus; it does not: it's about an apparent contradiction in Robinson's book on group theory between the two exercises. https://math.stackexchange.com/q/4...

3 hours later…

Martin R

07:18

:64086809

418

A: Enable automatic deletion of old, unanswered, zero-score questions after a year?

Abandoned, unanswered questions can be a nuisance for readers when they appear in search results. While every question deserves a chance to be answered, at some point the annoyance to those searching for a solution outweighs the increasingly small chance that an answer will be provided. For this ...

7 hours later…

Peter

14:36

We need a quick delete here

This and a very similar question will probably be undeleted again , unless some moderator locks them.

3 hours later…

Feeds

17:34

Q: Approach to the Collatz Conjecture

Just wondering if this would be both necessary and sufficient for a proof. First, define a Collatz representation of an odd number $n$ in the form: $$2^{\sum_{i=1}^k{a_i}}-\sum_{i=0}^{k-1}3^i2^{\sum_{j=i+2}^k a_{j}} - 3^{k-1} = 3^kn$$ Here, $k$ is the number of steps in the reduced form algorithm...