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2 votes
1 answer
135 views

Harrington's notes on McLaughlin/Arithmetically incomparable singletons

At one point I had copies of the handwritten notes Leo created about the McLaughlin conjecture and I know a similar set of notes exist titled Arithmetically incomparable arithmetic singletons. I've ...
8 votes
1 answer
393 views

Where can I find the following S. Shelah's paper?

I've been trying to find the following article: "S. Shelah, Remarks on cardinal invariants in topology, General topology Appl. 7(3) (1977), 251-259". I tried to go directly to the journal ...