| 2. | Relevance Logic | | | Article in the Stanford Encyclopaedia of Philosophy, by Edwin Mares. plato.stanford.edu |
| 5. | Conditional Sentences | | | Lecture notes on the analysis of condition sentences by Paul Kay. www.icsi.berkeley.edu |
| 6. | Peirce and Philo | | | Discusses Charles Peirce's account of conditionals, hypotheticals, and what he takes from Cicero's account of the debate between Philo and Diodorus. www.clas.ufl.edu |
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