Main Reading: David Lewis (1980): “Mad Pain, Martian Pain”
Background Readings:
- Janet Levin (2018): “Functionalism”, The Stanford Encyclopedia of Philosophy 
- Joseph LaPorte (2016): “Rigid Designators”, The Stanford Encyclopedia of Philosophy 
- John Bickle (2019): “Multiple Realizability”, The Stanford Encyclopedia of Philosophy 
Supplementary Readings:
- Frank Jackson, Robert Pargetter & Elizabeth Prior (1982): “Functionalism and Type-Type Theories”, The Stanford Encyclopedia of Philosophy