Upward planar drawing: Revision history

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30 June 2014

21 October 2013

  • curprev 16:2816:28, 21 October 2013‎ en>A3 nm‎ 19,357 bytes +19,357‎ →‎Hasse diagrams: +"However, some partial orders of dimension two and with one minimal and maximal element do not have an upward planar drawing", with counterexample (hopefully this is correct?)
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