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Iian Smythe
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Interesting examples of countable support iteration of ccc forcings

I am looking for examples in the literature of countable support iterations of ccc (particularly $\sigma$-centered) forcings, possibly with some emphasis on iterations that avoid adding Cohen reals.

Alternatively, I would also be interested in reasons why such iterations are "uninteresting", for reasons other than the usual limitations on cs iteration.

Iian Smythe
  • 3.1k
  • 15
  • 24