Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Morasses and finite support iterations   We introduce a method of constructing a forcing along a simplified
$(\kappa,1)$-morass such that the forcing satisfies the $\kappa$-chain
condition. Alternatively, this may be seen as a method to thin out a larger
forcing to get a chain condition. As an application, we construct a ccc forcing
that adds an $\omega_2$-Suslin tree. Related methods are Shelah's historic
forcing and Todorcevic's $\rho$-functions.

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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
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The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph