1 23 Synthese An International Journal for Epistemology, Methodology and Philosophy of Science ISSN 0039-7857 Volume 190 Number 4 Synthese (2013) 190:585-618 DOI 10.1007/s11229-012-0194-8 A convention or (tacit) agreement betwixt us: on reliance and its normative consequences Luca Tummolini, Giulia Andrighetto, Cristiano Castelfranchi & Rosaria Conte