@article{Hammer1995,
author = "Eric Hammer",
title = "{The Calculations of Peirce's 4.453}",
year = 1995,
journal = "Transactions of the Charles S. Peirce Society",
volume = 31,
number = "4",
pages = "829-839",
issn = "00091774",
abstract = "{Analyzes calculations reported by Peirce on beta fragment of the system of existential graphs, its notational variant and first-order logic. Methodology used by Peirce.}",
keywords = "Existential Graph, Beta Graph",
language = "English",
note = "From the Commens Bibliography | \url{http://www.commens.org/bibliography/journal_article/hammer-eric-1995-calculations-peirces-4453}"
}
