Über die Definition durch transfinite Induktion und verwandte Fragen der allgemeinen Mengenlehre

@article{NeumannberDD,
  title={{\"U}ber die Definition durch transfinite Induktion und verwandte Fragen der allgemeinen Mengenlehre},
  author={John von Neumann},
  journal={Mathematische Annalen},
  volume={99},
  pages={373-391}
}
  • John von Neumann
  • Mathematics
  • A pair of rectangular frame members have intermeshed elongated members joining the long sides of the frames, the frames are pivotally mounted to a base member so that in the set position of the trap the frames and base together form a hollow triangular animal case, a trigger member releasably secures the frames in the set position, and spring means bias the frames to an overlapping folded position on the base member. 

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