منابع مشابه
Notes from Hausdorff Institute Talk Oct 10, 2013
(a) isomorphism ∼=, elementary equivalence ≡, elementary equivalence ≡α for Lω1,ω sentences of rank < α. (b) Isomorphism of countable graphs, linear orders, countable Boolean algebras is ≤B complete for orbit equivalence relations of continuous S∞ actions (≤B is Borel reducibility, S∞ is the Polish group of permutations of ω). (c) for ∼= is partially answered in computable model theory, with no...
متن کاملAutobiographical notes
I was born in Zagreb (Croatia) on October 26, 1936. My parents were Regina (née Pavić) (April17, 1916, Zagreb–March 9, 1992, Zagreb) and Cvjetko Trinajstić (September 9, 1913, Volosko–October 29, 1998, Richmond, Australia).
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During this time of transition in the federal government and the National Institutes of Health, I write to assure the Blood community of the National Heart, Lung, and Blood Institute's (NHLBI) commitment to new and established investigators as outlined in the NHLBI Strategic Plan. This perspective discusses the NHLBI budget for the fiscal year 2009 and new policies for funding early stage inves...
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Open data is flourishing in Canada, but there are few formalized data literacy initiatives. Civic technology organizations such as the Toronto Node of the Open Data Institute (ODI Toronto), in partnership with public institutions and advocacy groups, are helping to fill the gap in data literacy through workshops and accessible hackathons. These organizations are collaboratively pursuing the goa...
متن کاملUnipotent Flows and Applications Lecture Notes for Clay Institute Summer School
We should think of the coefficients aij ofQ as real numbers (not necessarily rational or integer). One can still ask what will happen if one substitutes integers for the xi. It is easy to see that if Q is a multiple of a form with rational coefficients, then the set of values Q(Z) is a discrete subset of R. Much deeper is the following conjecture: Conjecture 1.1 (Oppenheim, 1929). Suppose Q is ...
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ژورنال
عنوان ژورنال: Philosophy
سال: 1946
ISSN: 0031-8191,1469-817X
DOI: 10.1017/s0031819100005489