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README.md

Contextual Equivalence for a Language with Continuous Random Variables and Recursion

Coq development of theorems and proofs.

Requirements:

Coquelicot may require additional dependencies that we do not rely on directly.

To build, use make or run using ProofGeneral.

File layout

  • Basics.v: Non-domain specific tactics and hints for auto.
  • Measures.v: Axioms about measure theory and lemmas about measure theory and real analysis.
  • Syntax.v: The syntax and static semantics of programs and related lemmas.
  • OpSem.v: The operational semantics for execution using a single entropy.
  • MeasSem.v: The measure semantics
  • LogRel.v: The definition of the logical relation.
  • Compatibility.v: The compatibility lemmas and the fundamental theorem for the logical relation.
  • CIU.v: The definition of the CIU CIU relation and the proof of equivalence with the E relation Erel.
  • CTX.v: Direct and indirect definitions of contextual ordering, the proof of the equivalence of those relations, and the proof of equivalence with Erel and CIU.
  • Interpolation.v: The interpolation and genericity theorems for manipulating small-step semantics as if they were big-step semantics. preserve measure.
  • EntropyShuffling.v: Lemmas about Entropy reshufflings that preserve measure.

Acknowledgment

This material is based upon work sponsored by the Air Force Research Laboratory (AFRL) and the Defense Advanced Research Projects Agency (DARPA) under Contract No. FA8750-14-C-0002. The views expressed are those of the authors and do not reflect the official policy or position of the Department of Defense or the U.S. Government.

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Coq implementation of logical relations for reasoning about a probabilistic programming language with continuous random variables and recursion.

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