Full reflection of stationary sets below $\aleph_ \omega$

by Jech and Shelah. [JeSh:387]
J Symbolic Logic, 1990
It is consistent that for every n >= 2, every stationary subset of omega_n consisting of ordinals of cofinality omega_k where k = 0 or k <= n-3 reflects fully in the set of ordinals of cofinality omega_{n-1} . We also show that this result is best possible.

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