Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lindenbaum-type Logical Structures: Introduction and Characterization   In this paper, we study some classes of logical structures from the universal
logic standpoint, viz., those of the previously known Tarski-type, and the new
Lindenbaum-type logical structures defined here. The characterization theorems
for these logical structures have been proved as well. The following natural
questions have been dealt with next. Is every Tarski-type logical structure
also of Lindenbaum-type and/or vice-versa? Finally, we study the logical
structures that are both of Tarski- and Lindenbaum-type, or of TL-type, and end
with a characterization and a representation theorem for these.

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The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: acc-phys