Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Explicit example of collapsing kappa^+ in iteration of kappa-proper
  forcings   We give an example of iteration of length omega of (<kappa)-complete
kappa^+-cc forcing notions with the limit collapsing kappa^+. The construction
is decoded from the proof of Shelah [Proper and Improper Forcing, Appendix,
Theorem 3.6(1)].

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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: cs
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: nlin