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15
155
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"How strong is $\Diamond_\kappa^+$?"

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#set-theory #infinitary-combinatorics
304
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The principle $S_1(\mathcal O,\mathcal O)$ versus the game $G_1(\mathcal O,\mathcal O)$

Published on
#general-topology #descriptive-set-theory #infinitary-combinatorics #infinite-games
470
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Packing infinitely many ellipses into a circle

Published on
#general-topology #geometry #projective-geometry #fractals #infinitary-combinatorics
376
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Exact $\Delta$ - System Lemma

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#set-theory #infinitary-combinatorics
145
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$\{\alpha < \kappa \mid cf(\alpha) = \lambda\}$ is not ineffable

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#set-theory #large-cardinals #infinitary-combinatorics
595
Views

Where can I learn more about the Galois connection induced by a graph on its own powerset?

Published on
#reference-request #graph-theory #relations #infinitary-combinatorics
203
Views

Indiscernible subsequences

Published on
#reference-request #set-theory #model-theory #infinitary-combinatorics
81
Views

Can every cardinal number between $\kappa^+$ and $2^\kappa$ be realized in this way?

Published on
#cardinals #infinitary-combinatorics
444
Views

Product of a Suslin tree with itself

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#set-theory #infinitary-combinatorics
154
Views

Showing a set of indexes where restriction is bijection is a club

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#set-theory #infinitary-combinatorics
257
Views

Generalization of a certain riddle and ultrafilters (?)

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#set-theory #puzzle #filters #infinitary-combinatorics
122
Views

Problem about infinitary combinatorics

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#set-theory #infinitary-combinatorics
410
Views

Aronszajn Trees and König's Lemma

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#set-theory #infinitary-combinatorics
154
Views

Todorcevic's proof on existence of Aronszajn Trees

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#set-theory #infinitary-combinatorics
381
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Normal tree with $\aleph_1$ nodes and no branch of cardinality $\aleph_1$

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#set-theory #infinitary-combinatorics

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