12 citations · 66 across the 25 of their papers we have counts for
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math.CO2012
Biologically Unavoidable Sequences
Samuel Alexander
A biologically unavoidable sequence is an infinite gender sequence which occurs in every gendered, infinite genealogical network satisfying certain tame conditions. We show that ev…
math.LO2012
The Rule of Global Necessitation
Samuel A. Alexander
For half a century, authors have weakened the rule of necessitation in various more or less ad hoc ways in order to make inconsistent systems consistent. More recently, necessitati…
q-bio.PE2012★ 11 cited
Infinite graphs in systematic biology, with an application to the species problem
Samuel Alexander
We argue that C. Darwin and more recently W. Hennig worked at times under the simplifying assumption of an eternal biosphere. So motivated, we explicitly consider the consequences…