| 1. | Peter of Spain (Petrus Hispanus) | | | Life and work of 13th century logician and author of the Tractatus; from the Stanford Encyclopedia by Joke Spruyt.
plato.stanford.edu |
| 2. | Excerpt from Peter of Spain | | | A brief passage from the Treatise on Distributions, in Joseph Mullally's translation. Discusses the problem of whether the negation of a statement makes it universal or renders it indeterminate.
www.humnet.ucla.edu |
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