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Levon Haykazyan's user avatar
Levon Haykazyan's user avatar
Levon Haykazyan's user avatar
Levon Haykazyan
  • Member for 9 years, 7 months
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13
Differences between logic with and without equality
Dec 1, 2018
answer
11
Löwenheim-Skolem for many-sorted theories
Jul 23, 2015
question
10
Two cardinal obstructions
Sep 16, 2015
answer
9
Can a nontrivial $\phi \in Gal(\bar K /\bar k )$ preserve all algebraically closed subfields?
Jul 14, 2017
answer
6
Groups and pregeometries
Sep 15, 2014
answer
6
Is the order arithmetic of the positive reals o-minimal?
Mar 2, 2019
answer
5
How to extend Morley's omitting type theorem to uncountable languages?
Nov 4, 2015
question
3
Least model over a certain configuration
May 18, 2017
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3
Product of types in stable theories
Feb 16, 2018
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2
Non-Forking and Related Concepts
Jul 5, 2015
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100 prisoners and a lightbulb
20
Is $\Bbb R$ definable in $(\Bbb C,0,1,+,*,\exp)$?
14
Elementary equivalence of free groups
12
Research in plane geometry or euclidean geometry
11
Proving a function is continuous for all real numbers