The Universality Spectrum: Consistency for more classes

by Shelah. [Sh:457]
Combinatorics, Paul Erd\H{o}s is Eighty, 1993
We deal with consistency results for the existence of universal models in natural classes of models (more exactly--a somewhat weaker version). We apply a result on quite general family to T_feq and to the class of triangle-free graphs.


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