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Results tagged with collatz-conjecture
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user 479330
The Collatz Conjecture, also known as the 3n+1 conjecture, is a famous open problem named after Lothar Collatz.
4
votes
How can I catalog these generalized Collatz problems?
This is a ruleset whose termination is independent from $\mathrm{PRA}$, primitive recursive arithmetic, letting $\langle x,y\rangle$ be short for $(x+y)(x+y+1)+2y$:
$\langle y,\langle 0,z+1\rangle\ra …
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