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POPL 2019
Sun 13 - Sat 19 January 2019 Cascais, Portugal

Call-by-push-value (CBPV) is an idealised calculus for functional and imperative programming, introduced as a subsuming paradigm for both call-by-value (CBV) and call-by-name (CBN). We formalise weak and strong operational semantics for (effect-free) CBPV, define a simple equational theory, and verify adequacy for the standard set/algebra denotational semantics. Furthermore, we prove normalisation of the standard reduction, confluence of strong reduction, strong normalisation using Kripke logical relations, and soundness of the equational theory using logical equivalence. We adapt and verify the known translations from CBV and CBN into CBPV for strong reduction. This yields, for instance, proofs of strong normalisation and confluence for the full lambda-calculus with sums and products. Thanks to the automation provided by Coq and the Autosubst 2 framework, there is little formalisation overhead compared to detailed paper proofs.

Mon 14 Jan

Displayed time zone: Belfast change

11:00 - 12:30
Research Papers: Proof Theory, Theory of Programming LanguagesCPP at Sala XII
Chair(s): Assia Mahboubi INRIA
11:00
30m
Research paper
A Proof-Theoretic Approach to Certifying Skolemization
CPP
Kaustuv Chaudhuri Inria, France, Matteo Manighetti Inria & École Polytechnique, Dale Miller INRIA Saclay and LIX
DOI
11:30
30m
Research paper
Call-By-Push-Value in Coq: Operational, Equational, and Denotational Theory
CPP
Yannick Forster Saarland University, Steven Schäfer Saarland University, Simon Spies Saarland University, Kathrin Stark Saarland University, Germany
DOI
12:00
30m
Research paper
Eliminating Reflection from Type Theory
CPP
Theo Winterhalter Gallinette / Inria / LS2N, Nicolas Tabareau Inria, Matthieu Sozeau Inria
DOI