Arguments from Ostension

My purpose here is to describe a type of argument characterized by the fact that one of its premises is a directive—i.e. what is expressed by a directive sentence: a general instruction how to proceed or act. This directive premise brings an ostensive mechanism for the inclusion of visual or multimodal elements in an argument. If an argument is an invitation to inference (Robert Pinto), by using such a directive utterance the addresser is inviting the addressee to make an inference from an image, not from a proposition. Hence I will call them arguments from ostension or from deixis.