Table of Contents

Evandro Agazzi

PART ONE: PHILOSOPHICAL CONSIDERATIONS

Paul Horwich

Evandro Agazzi

Aristides Baltas

Michel Paty

PART TWO: OBSERVABILITY AND HIDDEN ENTITIES

François Bonsack

Alberto Cordero

Bernard d’Espagnat

Massimo Pauri

PART THREE: APPLICATIONS TO QUANTUM PHYSICS

David Albert

Gian Carlo Ghirardi

Michel Crozon