Directory graphics/pgf/contrib/ptolemaicastronomy
ptolemaicastronomy
Diagrams of sphere models for variably strict conditionals (Lewis counterfactuals)
Author: Richard Zach E-mail: rzach@ucalgary.ca License: Released under the LaTeX Project Public License v1.3c or later See: http://www.latex-project.org/lppl.txt
David K. Lewis (Counterfactuals, Blackwell 1973) introduced a sphere semantics for counterfactual conditionals. He jokingly referred to the diagrams depicting such sphere models as Ptolemaic astronomy, hence the name of this package. It has nothing to do with Ptolemy or with astronomy, sorry.
The macros provided in this package aid in the construction of sphere model diagrams in the style of Lewis. The macros all make use of TikZ.
Download the contents of this package in one zip archive (243.1k).
ptolemaicastronomy – Diagrams of sphere models for variably strict conditionals (Lewis counterfactuals)
David K. Lewis (Counterfactuals, Blackwell 1973) introduced a sphere semantics for counterfactual conditionals. He jokingly referred to the diagrams depicting such sphere models as Ptolemaic astronomy, hence the name of this package.
The macros provided in this package aid in the construction of sphere model diagrams in the style of Lewis. The macros all make use of TikZ.
| Package | ptolemaicastronomy |
| Bug tracker | https://github.com/rzach/ptolemaic-astronomy/issues |
| Repository | https://github.com/rzach/ptolemaic-astronomy |
| Version | 1.0 |
| Licenses | The LaTeX Project Public License 1.3c |
| Maintainer | Richard Zach |
| Contained in | TeX Live as ptolemaicastronomy MiKTeX as ptolemaicastronomy |
| Topics | PGF TikZ Logic |
