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February 14, 2018 / porton

More on connectedness of filters

I added more on connectedness of filters to the file addons.pdf (to be integrated into the book later).

It is a rough incomplete draft. Particularly the proof, that the join of two connected filters with proper meet is connected, is not complete. (Remember that I order filters reversely to set-theoretic inclusion.)

This is now an important open problem to solve.

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