@TechReport{ Murphy04symmetrictr, author = {Murphy, VII, Tom and Karl Crary and Robert Harper and Frank Pfenning}, title = {A Symmetric Modal Lambda Calculus for Distributed Computing}, institution = {Carnegie Mellon University}, year = {2004}, number = {CMU-CS-04-105}, month = {Mar}, url = "http://www.cs.cmu.edu/~tom7/papers/", urlps = "http://www.cs.cmu.edu/~tom7/papers/symmetric-tr.ps.gz", urlpdf = "http://www.cs.cmu.edu/~tom7/papers/symmetric-tr.pdf", urlabstract = "http://www.cs.cmu.edu/~tom7/papers/symmetric-abstract.html", keywords = "distributed computing, lambda calculus, modal logic, curry-howard isomorphism, lambda 5, type theory, programming languages" }