this paper will examine ibn sina’s theory of the conditional syllogism from a purely logical point of view, and will lay bare the principles he adopted for founding his theory, and the reason why the newly introduced part of his logic remained undeveloped and eventually was removed from the texts of logic in the later islamic tradition. as a preliminary discussion, this paper briefly examines i...

We present a coherence-based probability semantics and propagation rules for (categorical) Aristotelian syllogisms. For framing the syllogisms as probabilistic inferences, we interpret basic syllogistic sentence types A, E, I, O by suitable precise imprecise conditional assessments. Then, define validity of inferences notions existential import which is required, Based on generalization de Fine...

The well-founded model for any general deductive database computed using the paraconsistent relational model, based on four-valued logic, does not support inference rules such as disjunctive syllogism. In order to support disjunctive syllogism, we utilize the generalization of the relational model to quasi-classic (QC) logic, whose inference power is much closer to classical logic. As the parac...

If Neuroscience is to contribute to Economics, it will do so by the way of Psychology. Neural data can and do lead to better psychological theories, and psychological insights can and do lead to better economic models. Hence, Neuroscience can in principle contribute to Economics. Whether it actually will do so is an empirical question and the jury is still out. Economics currently faces theoret...