Aboutorab Yaghmaie

Ibn Sina’s theory of efficient causality includes the definitions of metaphysical and natural efficient causes. In the first section, these definitions and two theses about their relation will be introduced. َAccording to the first thesis, natural efficient causes do not bestow existence and therefore they are not metaphysical. The alternative thesis defends bestowing existence by natural efficient causes, although this ontological status is restricted only to conferring existence of motion. In the second section, I will argue that, according to Ibn Sina, natural causes bestow existence and therefore they are metaphysical. To do that, textual evidence and second definition of efficient causality will be appealed. Bestowing existence by natural efficient causes threatens, prima facia, Ibn Sina's theory of divine causality as a deistic theory. However, I will finally try to show that bestowing existence by natural causes leads to a theory which respects special divine action, and so it is not deistic.

Scientific representation is an interesting topic for philosophers of science, many of whom have recently explored it from different points of view. There are currently two competing approaches to the issue: cognitive and non-cognitive, and each of them claims its own merits over the other. This article tries to provide a hybrid theory of scientific representation, called Two-Dimensional Theory of Scientific Representation, which has the merits of the two accounts and is free of their shortcomings. To do this, we will argue that although scientific representation needs to use the notion of intentionality, such a notion is defined and realized in a simply structural form contrary to what cognitive approach says about intentionality. After a short introduction, the second part of the paper is devoted to introducing theories of scientific representation briefly. In the third part, the structural accounts of representation will be criticized. The next step is to introduce the two-dimensional theory which involves two key components: fixing and structural fitness. It will be argued that fitness is an objective and non-intentional relation, while fixing is intentional.

Theories of scientific representation, following Chakrawartty's categorization, are divided into two groups. Whereas cognitive-functional views emphasize agents' intentions, informational theories stress the objective relation between represented and representing. In the first part, a modified structuralist theory is introduced that takes into account agents' intentions. The second part is devoted to dismissing a criticism against the structural account of representation on which similarity as the backbone of representation raises serious problems, since it has definite logical features, i.e. reflexivity, symmetry and transitivity, which representation lacks. Drawing on the representational relation between quantum and statistical field theories, I argue that scientific representation displays these logical features, although depending on the context they may be used or not