Blog Read the Guide to Posting. Filter:AllOpenResolvedClosedUnansweredSort byViewsAnswersVotesA question due to Frank Stephan.Open喻良 asked 3 years ago726 views0 answers1 votesSuggestions for Reverse Mathematics beyond $L_{2}$OpenSam Sanders asked 3 years ago580 views0 answers2 votesOver $ZF$, does the existence of a cofinal maximal chain of Turing degrees imply the existence of a well ordering of reals?Open喻良 asked 3 years ago403 views0 answers1 votesA finite nontrivial group not isomorphic to \(\text{Aut}(\mathcal D)\)OpenBjørn Kjos-Hanssen asked 3 years ago419 views0 answers2 votesCoding on computable subdomainsClosedLudovic Patey asked 3 years ago543 views1 answers1 votes