In the late twentieth century, the final version of the mental logic theory was presented. That
was a syntactic and formal approach intended to describe and explain the human inferential …

An essential point about Stoic philosophy is why certain arguments and rules are basic in
their logic. That is the case of the indemonstrables and the themata. It has been proposed …

Abstract LOPEZ-ASTORGA, Miguel. Chrysippus' Indemonstrables and the Semantic Mental
Models. Eidos [online]. 2017, n. 26, pp. 302-325. ISSN 1692-8857. Abstract According to …

It is often thought that Stoic logic is only a particular constatival logic. In this paper, I will try to
show that this idea is not correct and that the Stoics addressed at least general conditionals …

Two inferences correct in classical logic are controversial in cognitive science. The reason is
that people do not always deem them as valid inferences. One of them is the rule to …

It is usually accepted that Chrysippus of Soli proposed the “connexivist view” of the
conditional. I assume here that Chrysippus also supported the “inclusion view” and that …

According to standard propositional logic, the inferences in which the conditional
introduction rule is used are absolutely correct. However, people do not always accept …

Cicero attributes an inference schema that is not logically valid to Stoic logic. This fact has
been deemed as a Cicero's mistake. However, in this paper, I assume the thesis that Cicero …

There is a controversial Cicero's passage in De Fato that states that, according to
Chrysippus of Soli, it is more adequate to express certain conditionals as negated …

People usually seem to negate the conditional in a different way as it is provided by
standard logic. Both contemporary experimental results and texts coming from ancient …