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ϱ-inaccessible ordinals, collapsing functions and a recursive notation system

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References

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This work is part of a project supported by the Deutsche Forschungsgemeinschaft.

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Jäger, G. ϱ-inaccessible ordinals, collapsing functions and a recursive notation system. Arch math Logik 24, 49–62 (1984). https://doi.org/10.1007/BF02007140

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