Tail sequence

Tail sequence

In mathematics, specifically set theory, a "tail sequence" is an unbounded sequence of contiguous ordinals. Formally, let &beta; be a limit ordinal. Then a &gamma;-sequence s equiv langle s_{alpha}| alpha < gamma angle is a "tail sequence" in &beta; if there exists an &epsilon; < &beta; such that "s" is a normal sequence assuming all values in eta setminus epsilon.


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