arXiv · 0912.3733
In various models of set theory, we consider covering Aleph_1 x Aleph_1 rectangles by countably many smooth curves, and we study differentiable isomorphisms between Aleph_1-dense sets of reals.
Kenneth Kunen. 2010-05-28. Forcing Differentiable Functions. https://arxiv.org/abs/0912.3733
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